School buses ferry thousands of youngsters each day, and according to the National Transportation Safety Board (NTSB) they rank among the safest vehicles on America’s roads. That stellar record is no accident – it’s the result of a century‑long series of safety advancements that emerged after heartbreaking school‑bus tragedies. Collectively, these hard‑won lessons have saved countless lives and continue to protect students nationwide. Below, we count down the ten most pivotal tragedies that forced the industry to evolve.

10 Safety Advancements Overview

10 Railroad Crossings

Utah may be famous for its deserts and ski slopes, but it also holds a grim place in transportation history. On December 1, 1938, a ferocious blizzard hammered the Salt Lake Valley. Farrold Silcox, a three‑year veteran bus driver, was hauling 39 children to Jordan High School in Sandy. When he reached a railroad crossing, he stopped, glanced both ways, and rolled onto the tracks.

Mid‑way across, a freight train barreled into the bus, dragging it roughly half a mile (0.8 km) north before finally stopping. The collision claimed the lives of 24 children and the driver. Investigators concluded that the blizzard had severely limited visibility, preventing Silcox from spotting the oncoming train. In response, regulations now require any passenger‑carrying commercial vehicle to stop at a crossing, open the doors and windows, and listen for an approaching train before proceeding.

9 Manufacturing

School buses have come a long way since their late‑19th‑century origins, each generation improving on the safety of its predecessor. A tragic illustration of why construction matters occurred on May 21, 1976. Evan Prothero was behind the wheel of a 1950 Crown carrying 53 youngsters. After an hour of travel, a warning buzzer sounded in the driver’s compartment, prompting him to exit the highway.

As he attempted to slow down, the bus refused to decelerate, slamming into a guardrail before careening over the side of an embankment and crashing into a field. The roof collapsed, killing 28 passengers and injuring many more. The NTSB identified the bus’s structural weaknesses as a primary cause. Subsequent regulations forced manufacturers to produce sturdier frames capable of withstanding rollovers and other severe impacts.

8 Emergency Exits

Even when a bus isn’t on a school‑field trip, a crash can expose fatal design flaws. On the evening of May 14, 1988, a group of children and chaperones were returning from King’s Island when a northbound pickup slammed head‑on into their bus. The impact pierced the fuel tank, igniting gasoline and setting the vehicle ablaze in an instant.

Panicked students rushed to the rear—the bus’s sole emergency exit—and many perished. The driver of the pickup was later found intoxicated and sentenced to 16 years in prison. In the wake of the fire, Kentucky legislators, followed by the rest of the nation, mandated additional emergency exits on school buses, recognizing that more egress points could dramatically improve survivability in fires.

7 Brake Training

Another lesson emerged from a seemingly routine mountain route. On July 31, 1991, Richard A. Gonzalez Jr. piloted a 1989 Thomas school bus down a steep, winding road. The vehicle began to gain speed, and Gonzalez struggled to apply the brakes effectively. He honked at the car ahead, hoping to signal distress, but the bus continued accelerating.

Eventually, the bus veered into the opposite lane, careened around a curve, and skidded off the road, tumbling down an embankment. Seven passengers lost their lives and 53 were injured. The investigation pinpointed inadequate driver training for steep grades as a key factor, prompting transportation agencies to overhaul brake‑and‑grade training programs for all school‑bus operators.

6 Child Check System

Sometimes a tragedy stems from a simple procedural slip. On September 11, 2015, Armando Ramirez, a driver for Public Transportation Cooperative in Whittier, California, completed his morning route, dropping off three students before heading back to the yard and then home. Hours later, the body of Paul Lee was discovered inside Ramirez’s bus, lying in his own vomit.

It turned out Lee had never disembarked that morning, and Ramirez failed to perform the mandatory post‑route check that would have revealed the child’s presence. The negligence led to Lee’s untimely death. In response, California enacted a law requiring every school bus to install a child‑check system, forcing drivers to verify that no passengers remain on board before the bus is taken out of service.

5 Training for Hijacking

A harrowing kidnapping in July 1976 reshaped security protocols for school transportation. Ed Ray, a 55‑year‑old driver, stopped his bus after confronting an armed man who seized the vehicle and held 26 children and Ray hostage. The kidnappers ferried the group for 11 hours in two cargo vans, eventually dumping the children in a rock quarry near Livermore, California, 100 miles (161 km) away.

Fortunately, the driver and an older student escaped the buried van and raised the alarm. The perpetrators were soon captured. Today, many districts train drivers on how to react during hijackings, and most buses are equipped with GPS trackers and video cameras, tools that have proved invaluable in resolving such incidents.

4 Emergency Response Teams

Not every fatality results directly from the crash itself; sometimes the aftermath proves deadly. On February 28, 1958, John Alex DeRossett was driving a bus loaded with students along U.S. Route 23 near Prestonsburg, Kentucky. While navigating a tow‑truck blockage, the bus clipped the tow vehicle, careened left, and plunged down an embankment into the Big Sandy River.

Twenty‑two children escaped through the single rear emergency exit as the bus sank, but the remaining 26 students and the driver were dragged beneath the water and vanished. The National Guard was finally deployed on March 5, 1958, but the delayed response sparked public outcry. The incident spurred the creation of the county’s first dedicated disaster‑response team, a model that other jurisdictions quickly emulated.

3 School Bus Yellow and Two‑Way Radios

Early school‑bus operations were fraught with challenges, especially during severe weather. In March 1931, Carl Miller set out to transport his pupils, only to be caught in a sudden blizzard. After delivering the children, Miller decided to turn the bus around and head home, but a wrong turn led the vehicle into a ditch, stalling the engine and stranding 22 occupants.

Leaving two older children in charge, Miller trekked on foot for help. Two men eventually discovered the bus and rescued the youngsters, but six lives—including Miller’s—were lost. The tragedy prompted officials to standardize a highly visible uniform color for school buses, birthing the iconic “school‑bus yellow.” Simultaneously, two‑way radios were installed in every school‑transport vehicle, ensuring rapid communication in emergencies.

2 Fire Suppression System

Even the most modern buses can fall victim to unforeseen hazards. On December 12, 2017, 16‑year‑old Megan Klindt waited for her Riverside Community High School bus. Driver Donald Hendricks, 74, attempted a tight turnaround on a narrow street, backing too far and sending the rear of the bus into a ditch.

While trying to free the vehicle, the engine’s turbocharger overheated, igniting fuel and engulfing the bus in flames. Megan and Hendricks perished before firefighters could intervene. The NTSB’s investigation concluded that the fire resulted from an overheated turbocharger and recommended that all school buses be equipped with fire‑suppression systems to automatically extinguish such infernos.

1 Responsibility of Operator

Sometimes sheer bad luck, compounded by poor judgment, leads to disaster. On November 26, 1945, 24‑year‑old World War II veteran Royal J. Randle drove his Lake Chelan district bus through a light snowfall. He chose not to attach snow chains, assuming the thin layer of snow wouldn’t affect traction.

Snow quickly accumulated on the windshield, disabling the wipers and severely limiting visibility. Randle pulled over to clear the obstruction, but in doing so, he struck a hidden rock, sending the bus into a 30‑foot (9‑meter) embankment where it rolled twice and came to rest with the front submerged five feet (1.5 meters) underwater.

Five students and an adult escaped before the bus’s weight caused it to sink completely, trapping the remaining seven children and the driver. Divers recovered seven bodies within six days, while nine children remained missing and the search was eventually called off. The Washington State Patrol concluded that the accident resulted from poor visibility and that the school district bore responsibility for halting operations in unsafe weather. Today, both districts and drivers share the duty to assess road conditions and suspend service when hazards threaten pupil safety.

There is a razor‑thin boundary—one that’s all too easy to step over and even easier to blur—where ethical science meets the grim pursuit of knowledge through outright abuse. The phrase “10 nonconsensual experiments” captures a series of unsettling studies in which people were used as unwilling subjects, yet the data harvested helped shape today’s medical landscape. What counts as humane research when participants are kept in the dark? Who gets to draw that line?

10 Influenza1941

Nobody enjoys catching the flu. It swoops in unannounced, drags you down for days or weeks, and can leave you bedridden for an agonizing stretch. Imagine contracting the virus without ever suspecting a lab coat was involved—that’s precisely what occurred in the United States beginning in 1941, when researchers turned unsuspecting individuals into test subjects.

Thomas Francis Jr., the microbiologist famed for isolating influenza A and B, launched a series of experiments that year on people confined in state institutions, many of whom were children. The subjects were often deemed state property or were housed in mental asylums, making them easy targets for invasive study.

Francis never disclosed that the nasal spray he administered contained freshly isolated flu virus. Even more chilling, the wider medical community seemed to accept the premise that the ends justified the means, embracing a prevailing mindset that it was acceptable to expose uninformed individuals to disease as long as the research promised breakthroughs.

The resulting data deepened scientific understanding of influenza as a collection of distinct viruses and paved the way for vaccine development that protected countless U.S. soldiers during World War II.

9 Gynecology

Gynecology bears a legacy riddled with ethically abhorrent experiments, especially surgical interventions performed without consent. Visualize being shackled while a surgeon operates on you, unable to protest or escape—a nightmarish scenario that was all too real for many women.

James Marion Sims, often hailed as “the father of modern gynecology,” arrived at his infamous conclusions through methods that would be considered barbaric today. His work unfolded in the 1840s, a period when slavery was still legal in the United States.

All of Sims’s procedures were carried out on enslaved women who were denied anesthesia and, crucially, any say in the matter. These operations were excruciatingly painful, performed on bodies that legally could not refuse.

Through these ruthless techniques, Sims invented a suite of vaginal dilators designed to treat fistulas, abscesses, and other pathological openings. He forced these instruments upon helpless women in the name of progress, inadvertently laying the groundwork for much of contemporary gynecological practice.

In hindsight, the unnamed women who endured such torment deserve recognition as the true pioneers of modern gynecology, rather than the credit being bestowed upon Sims alone.

8 Spinal Taps

Back in 1896, the safety profile of spinal taps—now a routine diagnostic tool—remained a mystery. To determine whether the procedure caused short‑term or lasting harm, a daring physician named Arthur Wentworth stepped forward.

Wentworth performed lumbar punctures on twenty‑nine children, none of whom could give consent, and many of whom showed no signs of illness. Even at the time, the public outcry was palpable, with critics decrying the use of innocent youngsters for experimental validation.

Worse still, Wentworth allegedly bypassed parental permission entirely, leaving families oblivious to the fact that their children were being used as guinea pigs to assess a new surgical technique.

Nevertheless, his work contributed to the refinement of lumbar puncture, a procedure that remains indispensable in modern medicine for diagnosing conditions ranging from meningitis to subarachnoid hemorrhage.

7 San Quentin

San Quentin, the infamous California penitentiary, became the backdrop for one of the most disturbing chapters in medical history. From 1913 to 1951, chief prison surgeon Leo Stanley used the inmate population as a laboratory for his unorthodox pursuits.

Stanley harbored an obsession with male genitalia, fueled by eugenic ideologies reminiscent of Nazi doctrine. He championed the sterilization of those he deemed inferior—homosexuals, non‑white inmates, and anyone who didn’t fit his vision of a “pure” society.

His most grotesque experiments involved extracting testicles from deceased prisoners and grafting them onto living men. In some cases, he even transplanted animal testicles into human subjects, hoping to manipulate testosterone production.

These barbaric procedures impacted countless men over several decades, ultimately laying the groundwork for modern hormone replacement therapy—albeit through a cautionary tale that highlighted the dire need for ethical oversight in prison‑based research.

Stanley’s legacy, while tainted by cruelty, forced the medical community to confront the necessity of stringent ethical standards when conducting research on incarcerated populations.

6 Tuskegee Experiment

The Tuskegee syphilis study stands as a stark reminder of how racism and scientific ambition can intertwine to produce unimaginable suffering. Initiated in 1932, the project aimed to chart the natural progression of untreated syphilis.

Set against the backdrop of Jim Crow America, the study recruited African‑American men—some already infected, some not—under the false promise of free medical care and sustenance.

Researchers deliberately withheld treatment, even after penicillin became the standard cure, allowing the disease to run its course unchecked. Participants were never informed of their diagnosis, nor were they given the option to consent.Prior to Tuskegee, a 1928 Norwegian investigation had examined syphilis in patients already afflicted, but it avoided the ethical quagmire of infecting new subjects. Tuskegee attempted to fill that gap, yet did so by violating basic human rights.

The study persisted for four decades, finally collapsing in 1972 after a whistle‑blower exposed the truth. Although the investigators published their findings, the data came at an enormous moral cost.

Today, medical professionals understand the full spectrum of syphilis stages thanks in part to the data harvested from Tuskegee—knowledge that would have remained elusive without those tragic, unethical experiments.

5 Hepatitis1947

In 1947, Dr. Joseph Stokes Jr. embarked on a grotesque investigation into hepatitis transmission, using chocolate milkshakes as his delivery vehicle. The unsuspecting participants were prisoners who had never shown signs of jaundice or hepatitis infection.

Stokes blended livers laced with the hepatitis virus—and even fecal matter containing the pathogen—into the shakes, then served them to inmates without any disclosure. The subjects were thus deliberately infected with a dangerous virus they believed to be a harmless treat.

These experiments didn’t stop with a single batch. By 1950, Stokes expanded his trials, intentionally exposing two hundred female prisoners to hepatitis in order to study the disease’s behavior across genders.

The research yielded valuable insights: it clarified that contracting one strain of hepatitis does not protect against another, and it illuminated patterns of co‑infection. However, these advances were bought at a horrific price, as countless individuals suffered severe illness as a direct result of the study.

4 ULTRA

MK‑ULTRA represents a chilling chapter in Cold‑War espionage, where the CIA orchestrated a series of covert experiments to explore mind‑control techniques. Conducted between 1953 and 1973, the program encompassed everything from electric shock therapy to the clandestine administration of psychedelic drugs.

Agents covertly slipped LSD into the drinks of unsuspecting civilians at bars and beaches, observing the hallucinogenic aftermath in real‑time. The operation resembled a twisted version of a date‑rape scenario, substituting drugs for violence but inflicting profound psychological trauma.

Even CIA personnel weren’t exempt; the agency dosed its own scientists without consent, leading to at least one fatality when a researcher, under the influence of an undisclosed substance, fell from a hotel window.

Although much of the program’s paperwork was deliberately destroyed, the surviving records indicate that MK‑ULTRA inadvertently expanded scientific understanding of psychedelics, laying groundwork for later research into substances like MDMA and LSD, despite the grave human cost.

3 Acres Of Skin

The phrase “acres of skin” emerged from the mind of Dr. Albert Kligman, who entered the walls of Pennsylvania’s Holmesburg Prison to conduct a series of dermatological experiments on inmates.

Kligman’s agenda was to test an array of mind‑altering chemicals and potential weapons of war on a captive population, a venture funded by the U.S. military and more than thirty corporations.

Among the many tests, researchers measured the smallest dose of a drug capable of rendering half of a test group impotent. Even seemingly benign products—such as toothpaste and deodorant—were applied to the skin, then biopsied, turning routine hygiene items into instruments of torture.

The experiments spanned from 1951 to 1974, ultimately yielding a trove of data that informed modern skincare formulations and safety thresholds for topical agents.

Anyone who has noticed the minuscule concentrations of active ingredients in today’s creams is indirectly benefiting from the findings of these grim studies.

Dr. Kligman authored over 500 papers, garnering thousands of citations, yet the legacy of his work is forever shadowed by the ethical violations that made those discoveries possible.

2 Blood Substitute

Sometimes the most valuable medical lessons arise from stark failures. In the early 2000s, Northfield Laboratories introduced an artificial blood product—an enticing alternative to donor blood that promised reduced disease transmission and compatibility with patients who objected to traditional transfusions.

The company, backed by the FDA, launched a study that covertly enrolled trauma patients who were unconscious and therefore unable to give informed consent. These individuals received the synthetic blood product under the guise of standard care.

Outcomes were sobering: 13.2 % of participants who received the artificial substitute died, compared with a 9.6 % mortality rate in the saline‑control group. The trial was deemed a catastrophic failure.

Nevertheless, the grim results underscored critical safety gaps, teaching researchers that mimicking the complex functions of human blood requires far more rigorous testing before any artificial substitute can be deemed viable.

1 948

While the Tuskegee study raged on, U.S. researchers launched another horrifying venture in Guatemala between 1946 and 1948. Armed with penicillin—then a revolutionary antibiotic—they set out to evaluate its efficacy against syphilis, but chose to create infection first.

The investigators deliberately inoculated unsuspecting Guatemalan subjects—including sex workers, individuals with mental disabilities, prisoners, and orphaned children—with the syphilis bacterium. Methods ranged from injecting the pathogen directly into male genitals to applying it onto open wounds on the skin.

Some participants responded positively to penicillin, which helped control the disease, yet the control groups endured the full brunt of infection without treatment, highlighting the stark ethical breach.

This grim experiment contributed valuable data on penicillin’s therapeutic potential and informed strategies for disease prevention, such as condom use, but the knowledge was extracted at a devastating human cost.

These ten unsettling stories illustrate how nonconsensual experimentation, while propelling medical progress, also serves as a stark reminder of the moral responsibilities that must accompany scientific curiosity.

Through the course of human history, life expectancy has gradually increased; this is thanks to medical advancements. Because of scientific and medical advances, human life expectancy has increased much more dramatically in the last 100 to 150 years. The average life expectancy in the United States in 1900 was 49 years, and in 1800 it was even less (estimated to be between 30 and 40 years).

Our understanding of medicine, disabilities, and science, in general, has allowed this drastic improvement. Let’s explore ten medical advancements that increased life expectancy. Some of the advancements below are from the nineteenth century, and some are far more recent, as scientific advances continue to bring about medical technological innovation.

Related: 10 Weird Medieval Medical Practices That Actually Work

10 The Discovery of Germ Theory

From early on in our lives, we are taught about germs. Schoolchildren are regularly reminded to wash their hands. However, this was far from the case in the middle of the 19th century. Instead, the commonly believed theory was that disease was created through spontaneous generation.

Spontaneous generation is just what it sounds like, disease appearing from literally nowhere. Luckily, in 1861, French microbiologist Louis Pasteur (the creator of the process of pasteurization) proved to the scientific community and the world at large that disease was not caused by “spontaneous generation.” Instead, it was caused by microscopic organisms, also known as “germs” or pathogens.

The medical and scientific community eventually embraced this theory, leading to thousands of deaths being prevented from infectious diseases, such as typhoid fever, the flu, dysentery, and more. The positive effects have been endless. Understanding how disease forms and spreads has been an absolute cornerstone to medical and scientific advancements and has positively impacted human life expectancy.

The Germ Theory is possibly the most important advancement in human medical history.

9 Anesthetics

Surgeries are commonplace in today’s society; it is not rare for a person to have three or more surgeries throughout their lifetime. This would have been completely unheard of just 150 years ago. There have been many advancements in surgical science in recent years, but none has been as important as the usage of anesthesia.

Before anesthesia was commonly used, it was not unusual for patients to choose death instead of emergency surgery. After all, surgery was used only as a last option when doctors were desperate. Without anesthetics, the idea of surgery must have been completely terrifying, especially since the patients were not given much more than the option of opium, alcohol, or a leather strap to bite on. And, of course, the surgeries were often unsuccessful anyway.

The first recorded use of an anesthetic during surgery was in 1846 by William G. Morton, using sulfuric ether on a patient with a tumor in his neck. Early on, however, anesthetic usage was somewhat unpredictable and dangerous. But as it became more common, the practice became refined. Now, the risk of an accident involving anesthesia is extremely low. This allows more patients access to life-saving surgeries and has greatly increased human life expectancy over time.

8 Artificial Intelligence in Medicine

The next item on our list is not from so far in the past. Rather, it sounds like something from the future. Artificial Intelligence (AI) is a technology with incredible potential in all areas of science, including the medical field. AI technology is sometimes called “machine learning,” where software can catalog information more efficiently than a person.

The possibilities for AI in medicine are vast. Currently, AI systems are used in various ways, such as patient diagnosis, doctor-to-patient communication, maintaining medical records, cataloging prescriptions, remote treatment of patients, and more. While the current usage of AI has helped save many lives and optimized medical processes, the potential for the future is even greater.

AI can screen diseases, personalize patient treatment, and even edit genes. It is exciting to imagine the advancements that medicine and science can achieve with the increased usage of Artificial Intelligence technology.

7 Laparoscopic Surgery

As mentioned earlier in our list, surgery was far less common before the advancement of anesthetics. Another major advancement in surgery came more than 100 years later in the form of laparoscopic surgery. This type of surgery involves a smaller incision than traditional surgery. Then, the surgery can be performed with less risk using small tubing and even smaller cameras.

Laparoscopic surgery was first developed in the 1980s and is sometimes called minimally invasive surgery for obvious reasons. The many benefits include:

• A shorter recovery time and hospital stay
• Fewer complications
• Smaller scars
• Less pain for the patient

Despite being a relatively new technology, laparoscopic surgery is almost as common as other kinds of surgery in modern hospitals because it is so beneficial. Access to less invasive and less dangerous surgeries has already saved thousands of lives through preventative measures and will continue to increase our life expectancy.

6 Organ Transplants

Failing organs have been a common cause of death throughout human history. For this reason, scientists have attempted organ transplants for decades. The first successful organ transplant (a kidney) was in 1954 by Doctors David Hume and Joseph Murray. This was a major advancement for medicine, and it has only improved.

Less than ten years later, in 1963, the first lung transplant was successful. Shortly after, in 1966, a pancreas was transplanted. The next year, liver and heart transplants were successfully achieved. These procedures have become much more commonplace and are performed hundreds (or thousands) of times each year. Organ transplants have had a profound impact on patients with failing organs and have allowed many people to be saved.

As technology advances, organ transplants have taken place from animals to humans, including a kidney from a pig to a human. This is called Xenotransplantation. In the near future, organ replacements may be able to be created by a 3D printer or even grown in a lab or medical facility! Organ transplantation technology has been one of the most important medical advancements in increasing human life expectancy.

5 Antibiotics

In 2010, the Royal College of Physicians of Edinburgh was asked to vote on the most important medical developments of the last 50 years (see the complete list here). The most important advancement in their eyes? The discovery of antibiotics.

In 1928, one of the happiest accidents in human history occurred. Scottish scientist Alexander Fleming accidentally discovered a mold in a petri dish. This discovery turned out to be penicillin, the world’s first antibiotic. While penicillin did not go into common use immediately, antibiotics continued to develop throughout the 1940s.

The mass production of penicillin began during World War II, notably by scientists Howard Florey and Ernst Chain. Thanks to the development and contributions of many other medical scientists and doctors, antibiotics have saved many lives and extended even more.

How can you disagree with the Royal College of Physicians of Edinburgh? Clearly, antibiotics have been a crucial medical advancement.

4 ACE Inhibitors

Next on our list is an important, though hardly well-known, treatment. ACE (Angiotensin Converting Enzyme) inhibitors are used for various purposes. Commonly, they are used for patients with high blood pressure, heart conditions, or kidney disease.

In basic terms, ACEs dilate or widen the patient’s blood vessels. This allows the amount of blood flow from your heart to increase. ACE inhibitors can help lower blood pressure and are often prescribed for this reason. However, they are also prescribed for heart failure, diabetes, heart attacks, and those at risk for heart attacks and strokes.

ACE inhibitors are prescribed to millions of patients across the United States annually. This medical advancement is not only a preventative measure to protect patients from organ failure; it has greatly improved the quality (and likely duration) of life for many patients since the introduction of the medication back in 1975.

3 Kidney Dialysis

Kidney dialysis is a medical procedure involving removing waste and excess fluid from a patient’s blood when their kidneys are not working properly. In most cases, a dialysis machine is used. The patient’s blood is filtered by the dialysis machine and then returned to the body. In other words, it is as if the patient is using an artificial, external kidney.

While dialysis is certainly not a perfect or comfortable solution, it has saved many lives. In many cases, dialysis is used as a sort of stall tactic. It allows patients to continue functioning without a functioning kidney. This time is used to help the patient find a suitable donor organ. Incredibly, this medical advancement was created in the Netherlands during the Nazi occupation of World War II.

Dr. Willem Johan Koff created the first dialysis machine (dialyzer). To help his patients, he created the machine using spare parts, including soda cans and pieces from a washing machine. His creativity and the continued ingenuity of the medical community overall have saved many lives and extended the life expectancy for patients suffering from kidney disease.

2 Medical Imaging Technologies (MRI, X-Ray, CT, Ultrasound)

CT scans, MRI, x-ray, and ultrasound technology are all benefits of the next advancement on our list. It sounds simple, but for centuries, doctors could not see many parts of the body (while patients were alive). This all changed with the invention of the x-ray in the late 19th century by German physicist Wilhelm Conrad Rontgen.

Shortly after, a hospital in Glasgow opened the first radiology department in medical history. The next developments in medical imaging did not come until the 1950s and ’60s, with the increase in ultrasound and CT usage for medical diagnoses.

In 1973, Paul Lauterbur created the MRI (magnetic resonance image). The MRI is often one of the first tools medical professionals use to get an accurate diagnosis. The benefits of medical imaging are countless and still growing today as technology continues to march forward. The advancement of medical imaging is hugely important for individual patients and scientists to understand the body as a whole.

1 Vaccine

The vaccine is possibly the greatest single tool that humanity has against disease prevention. Vaccines were first invented in the late 18th century. As with many great technological advances, it was discovered due to necessity.

The smallpox virus raged worldwide, causing countless deaths and infections. Edward Jenner was the first to use vaccinations to combat this epidemic. Eventually, through the use of vaccines, smallpox was eradicated. Other important vaccinations in the 1800s and 1900s include rabies, tuberculosis, cholera, polio, and more.

Due to necessity, new technology has been used to develop vaccines. Through mRNA technology, new vaccines are now being developed expeditiously. Vaccines are a key part of our society and have undoubtedly saved millions of lives through disease prevention.

Believe it or not, one-fifth of the 21st century is already behind us, and the past 20 years were pretty intense. While there were plenty of social and political changes across the world, one industry that has seen significant advancement is medicine.

The first 20 years of the 21st century have seen advancements in the way we identify, catalog, and treat a plethora of diseases. This list highlights the 10 most significant medical advances made in the first fifth of the 21st century.

10 Prosthetics Have Gone Bionic

The Six Million Doller Man made it seem like bionic implants and prostheses were an impossible future. That show aired in the 1970s, and the future is now! Of course, people aren’t transformed from crippled astronauts into superheroes, but bionic prosthetics have gone from science fiction to reality.

It will be a while before these limbs look and feel like biological appendages. Still, advancements are being made towards that goal. Modern prostheses can function better than past versions. Some even make it possible for the wearer to manipulate them with their minds.

By placing electrodes on various parts of the skull, a person can manipulate their bionic prostheses by thinking. The technology needs some work, but it’s been proven to function with some patients being able to open and close a bionic hand to pick up and manipulate objects.

The technology has gone beyond manipulation to make it possible to “feel” with bionic fingers. Other advancements include bionic lenses that restore vision. Work is being done to create implantable neuroprosthetic devices that can control computers, so expect this technology to improve and advance over the next 20 years.

9 HIV/AIDS Treatment Has Taken The Fight To The Virus

For years, it seemed that HIV was a virus that couldn’t be defeated. When it infected someone, it was only a matter of time before they developed AIDS, which would ultimately claim the patient’s life. For the latter part of the 20th century, that was typically the result of an infection.

There were antiviral medications patients could take, but they were numerous, and each came with side effects. This made it difficult for patients to stay on schedule, and eventually, the virus won out. That began to change in 2006 with the release of Atripla.

The medicine combined three antiretroviral drugs into a single dose, making it much easier and less damaging to take. In 2013, Stribild was released, and it combined four HIV antiretroviral medications into a single dose. Medicines and treatments continued to improve over the first two decades of the 21st century.

In 2017 and 2019, two new medications, Juluce and Dovato, were released, drastically improving treatment options for patients. Those two breakthrough drugs made it possible for every patient with HIV to be on an effective single-dose therapy, helping to reduce the number of HIV patients who develop AIDS while drastically reducing healthcare costs.

8 We Cracked The Human Genome

In 1990, an international scientific research project began the arduous task of cracking the human genome. The idea was to determine the base pairs that make up human DNA. These would then be mapped to better understand the human genome, which would aid in medical research and treatment.

In 2000, the Human Genome Project released a rough draft of the human genome. It was the first time in history that people could read a complete set of human genetic information. Three years later, a final draft was released as the program shut down, having delivered on its promise to map the three billion nucleotides contained in our DNA.

The finished project presented a mosaic of various individuals, and the data derived from the study has been instrumental in furthering our understanding of human genetics. The project made it possible to map an individual human genome easier and relatively inexpensively. This makes it possible to identify disease-causing mutations before they manifest in a patient.

Genomics advancements have furthered cancer research and treatment with the creation of more targeted drugs. Additionally, we now know the genetic basis of nearly 5,000 conditions, which is a significant improvement over the 60 we understood before we cracked the human genome.

7 Advances In Genetic Engineering

Science fiction tells us that genetic engineering results in the creation of monsters. In reality, it offers a means of correcting congenital defects and mutations that result in disease. The most well-known process for accomplishing this is CRISPR, or clustered regularly interspaced short palindromic repeats.

Essentially, CRISPR is a means of targeted editing a living organism’s genes. It can also be used to create agricultural products, genetically modified organisms, and control pests and pathogens. The 2020 Nobel Prize in Chemistry was awarded to Jennifer Doudna and Emmanuelle Charpentier for developing the technique.

The use of CRISPR genomic modification remains controversial, but it has been shown to be effective in various medical applications. Research in biomedicine shows that CRISPR can treat cancer, progeria, sickle cell disease, hemophilia, Huntington’s disease, and many more diseases resulting from a person’s genes.

In 2020, CRISPR was used effectively to treat glioblastoma and metastatic ovarian cancer. Further research and development will likely yield more advancements in treating various diseases, pathogens, and more. Research is being conducted worldwide to advance CRISPR into various therapies, suggesting it will become commonplace in the future.

6 Heart Disease Is No Longer A Death Sentence

Before the turn of the century, doctors could do very little for a patient who suffered a heart attack. Treatment typically consisted of providing a drip of morphine and lidocaine, which was believed to prevent irregular heartbeats. Most patients didn’t recover, but these days, deaths from heart disease have dropped by 40%.

A lot of that is due to the development of new medicines, including Lipitor, Mevacor, Crestor, and Simvastatin, which all work to slow the progression of atherosclerosis (plaque and fatty material buildup in the arteries). With those drugs, fewer patients are getting to the point of having a heart attack.

Still, heart attacks do occur, but when they do, they are treated very differently than they were in the past. Today, it’s all about speed. Once a patient arrives at the hospital, a clot can be destroyed with drugs. A genetically engineered tissue plasminogen activator (tPA) can bust up a clot, restoring blood flow.

Patients who require surgery are treated differently from the past, resulting in far fewer deaths from a cardiac infarction. The improvement stems from a 1998/2000 goal set by the American Heart Association, which wanted to reduce cardiac deaths by 25% by 2010. In 2008, the goal was achieved, and by 2020, a 40% reduction was reached.

5 Stem Cell Research & Application Made Leaps & Bounds

The use of stem cells in research isn’t anything new, as the technology to derive them from embryos was developed in the early 1980s. Since then, technology has advanced significantly, and medical research and treatment applications have hit the ground running in the 21st century.

Stem divide to form “daughter cells,” which can then turn into new stem cells or become any other specialized cell in the body. Under the right laboratory conditions (or in the body), stem cells can replace damaged cells. Potentially, they can be used to grow new organs.

The applications of the latter are promising, as any organs grown from a patient’s own cells wouldn’t require a lifetime of anti-rejection medication. Furthermore, the organ would theoretically be accepted without a problem, reducing the risk of transplantation, which is already a complex procedure.

Other applications include treating against disease and genetic conditions. In one study, manipulated bone marrow cells were transplanted into two seven-year-old boys. This stopped the progress of a fatal brain disease called adrenoleukodystrophy. Research into other applications is promising, suggesting stem cell therapy is truly the future of medicine.

4 Targeted Cancer Therapies Are Improving Survival Rates

For years, the primary method to treat a patient with cancer was through chemotherapy and radiation therapy. While these often worked, they did so by attacking cancer cells and healthy cells, which presents its own set of problems. Over the past decade, new techniques have been developed that make it possible to treat cancer more effectively.

Targeted therapies make it possible to eliminate many of the dangerous side effects of chemo and radiation therapies by going after the cancer cells without the danger of harming healthy cells. These targeted therapies work in several ways, but for the most part, they do the following:

-They identify and kill cancer cells directly.
-They interfere with the spread of cancerous cells, blocking the ones responsible for tumor growth.

The past decade has seen FDA approval for more than 25 new medicines that have shown an effectiveness in treating cancer patients through targeted therapy. The drugs are either small-molecule or monoclonal antibodies, which target specific cancer cells’ functions of how they divide, grow, and spread.

The technology behind targeted therapy is still relatively new, so advances are continuing around the world. It doesn’t mean we’ve beaten cancer, but we have advanced in the fight against one of humanity’s most insidious enemies.

3 Nanomedicine Left Science-Fiction Behind And Became A Reality

Sci-Fi has long been the domain of nanotechnology, and for a good reason. Programming machines smaller than cells is fantastical in nature, but that doesn’t mean it’s impossible. To be clear, that’s not what modern nanomedicine is, but the impact of what it has become suggests the future may be devoid of side effects.

Current nanomedicine is centered mainly around drug delivery. Instead of programming impossibly tiny robots, nanomedicine works by employing nanoparticles that are specifically engineered to target specific cells in targeted drug delivery. In short, it takes medicine directly to the affected cells, which reduces the total amount of drugs required.

Additionally, nanoparticles avoid healthy cells, which limits side effects. As the technology develops, it could reduce side effects in targeted therapies, improving drug effectiveness and survival rates.

Nanotechnology-based drugs are already on the market. Drugs like Abraxane, Onivyde, Rapamune, and others have improved anti-rejection and cancer treatments. Research is ongoing, and further advances in the treatment of HIV and cancer are looking to be the way of the future.

2 It Is Now Possible To Print Body Parts

Fabricating a body part from raw materials has long been the subject of science fiction, but that’s not the case any longer. Since 3D printing technology has advanced over the past two decades, new methods in creating implantable body parts have emerged. The current technology makes it possible to combine cell types with polymers to create living, functional tissues.

The technology behind this is still in the early phases of development, and it isn’t widely available at this time. Still, studies have made significant leaps and bounds via the technology. By 2020, researchers had successfully printed and implanted bionic eyes, hearts, skin, bionic ears, elastic bones, ovaries, and antibacterial teeth.

Because it’s still in the research and development phase, these items and organs have been successfully implanted into mice and other animals. Still, the technology is incredibly promising. As it develops, it should be possible to utilize a specialized 3D printer to recreate organs that can be implanted into patients.

Bioprinting and biotechnology companies are working hard to recreate everything from blood vessels to ears and whatever is needed in the future. It may eventually be possible to print a person’s heart to replace a damaged one without having to wait for months or even years on a transplant list.

1 RNA Vaccines Left The Lab And Took The Fight To The Virus

On their own, the vaccines developed to fight against COVID-19 are a fantastic medical achievement. Simply getting them through all the necessary red tape is noteworthy. Still, there’s far more going on behind the scenes than the average person knows because the technology that went into creating the vaccines represents a significant advancement.

The vaccines were made as quickly as they were, in part, because the research was already underway to develop the technology of RNA vaccines. Traditional vaccines work by placing an inactive version of the whole virus into the body. The immune system responds by learning how to attack and deal with it.

Another way to fight a virus is to deliver the nucleic acid that encodes the protein. The person’s immune system reacts by making the necessary protein to fight the virus. RNA vaccinations inject the nucleic acid that codes for the proteins that the cells need to make, delivering the “instructions” the body needs to fight off the virus . . . in other words, the vaccine changes the host’s DNA.

RNA vaccine technology is relatively new, and the COVID-19 vaccines are the first to make it out of the testing phase and into patients’ bodies. Thus far, it’s appeared successful, but it’s only the beginning. Further research and advancements in the technology could battle against viruses that have been difficult in the past, making RNA vaccines one of the most important medical advancements of the 21st century.