Welcome to our roundup of 10 hilarious false theories about the penis, a subject that has baffled psychologists for over a century. Below you’ll find each outlandish claim, why it seemed plausible at the time, and the modern verdict that proves it’s pure nonsense.

10 Hilarious False Theories Overview

During the early 20th century, Sigmund Freud discussed what he called penis envy. Freud said that penis envy is a syndrome that exclusively affects women. As you probably guessed, it’s all about women becoming jealous of men’s penises and wishing they had penises of their own.

Freud claimed that penis envy first appears during childhood, right at the moment girls realize they don’t have penises. At the same time, they also notice that boys derive more pleasure from their penises than they do from their vaginas. So they get jealous of the boys and wish they had their own penises.

However, the girls understand that they will never own penises. So they forge closer ties with their fathers and prefer to birth sons to make up for their lack of penises. The theory was very controversial at the time and led to several other weird theories we will mention below. Modern psychologists say penis envy does not exist.

9 Womb Envy

Sigmund Freud’s theory of penis envy drew the ire of several female psychologists of the day. One was Karen Horney, who responded by proposing the theory of womb envy, which she considered the opposite of penis envy.

Horney argued that women do not suffer from penis envy because they are never jealous of the man’s penis. Instead, it is the men who suffer from womb envy and are jealous of the woman’s uterus. Horney claimed males develop womb envy the moment they realize a womb is needed to produce children. So they become jealous because they need to depend on women to have babies.

Interestingly, Horney still ascribed to Freudian schools of thought and agreed with a number of Freud’s other theories. However, it seemed Freud took his penis envy too far. Horney opposed several of Freud’s theories on female sexuality. She believed men and women have different roles in society, which Freud did not seem to believe.

8 Masculine Protest

The concept of masculine protest was explained by psychiatrist Alfred Adler in his book, Social Interest: A Challenge to Mankind. Adler wrote that women often feel inferior when they perform feminine tasks like cooking and taking care of the home.

Adler added that women believe that so-called “feminine roles” prove they are the weaker sex and second fiddle to men. So the women protest against their de facto roles by performing manly ones. This takeover of masculine roles is what Alder considered the masculine protest. Adler claimed women do this to feel more dominant and powerful.

The roles vary but could include taking on dangerous jobs like joining the military or becoming a firefighter. Or they could learn martial arts. The masculine protest also supposedly makes women prefer their sons to their daughters.

7 The Conceptual Penis As A Social Construct

On May 19, 2017, the journal Cogent Social Sciences published a gender studies essay titled “The Conceptual Penis as a Social Construct.” The essay, written by researchers Jamie Lindsay and Peter Boyle, was filled with meaningless gibberish. For instance, the authors claimed that the human penis was not a reproductive organ but a “damaging social construction,” one that is “isomorphic to performative toxic masculinity.” The essay got weirder as the authors tried to link the penis with climate change.

The authors later revealed the essay to be a hoax. Even their names were fake. They were actually Peter Boghossian and James A. Lindsay. The men claimed they deliberately wrote the essay to be humorous and meaningless. In fact, they read it several times over to ensure that it made no sense.

Lindsay and Boghossian said they wrote the essay to prove that writings on gender studies are often biased. However, the men also unwittingly proved that paid-to-publish journals like Cogent Social Sciences will publish anything for money. The journal tried to save face by retracting the essay after the men revealed the hoax.

6 Castration Anxiety

Castration anxiety is another syndrome proposed by Sigmund Freud. Freud believed that boys suffer castration anxiety the moment they realize girls do not have penises. The boys are startled by the discovery and somehow deduce that the girls lost their penises as punishment for some misbehavior.

This causes boys to fear that their own penises could also be cut off as punishment. Freud called this castration anxiety and claimed that it often occurs during the phallic stage, one of the five stages of psychosexual development proposed by Freud.

The five stages are the oral, anal, phallic, latency, and genital stages, in that order. A part of the body is considered the most important (and therefore the highest priority to satisfy the needs of) during each stage of development except during the latency stage, when sex becomes secondary. For the other four, they are the mouth for the oral stage, the anus for the anal stage, and the genitals for the phallic and genital stages.

Freud believed castration anxiety was usually a result of the Oedipus and Electra complexes, which we will address in the next two entries.

5 Oedipus Complex

Freud claimed the Oedipus complex manifests during the phallic stage—just like castration anxiety. However, the Oedipus complex comes first and leads to castration anxiety. Freud claimed boys develop their first sexual feelings during the phallic stage. Curiously, they (unconsciously) direct those feelings toward their mothers. This was what Freud called the Oedipus complex: the sexual feelings a child directs to his mother.

Fortunately for human evolution, the boys quickly realize that their fathers have already taken their mothers. So they start to consider their fathers as competitors for their mother’s love. Then the boys figure out that women do not have penises. As we mentioned in the previous entry, the boys assume that women lost their penises after they were cut off as punishment.

The boys fear their fathers could cut off their penises, too, if the father should learn of the son’s feelings for the mother. So they suppress the sexual feelings they have for their mothers and ally with their fathers to save their penises. This marks the end of the phallic stage and the beginning of the latency stage, when the child has no sexual feelings.

4 Electra Complex

Freud developed the theory of what he called the “negative Oedipus complex” or “feminine Oedipus attitude” at the same time he came up with the Oedipus complex. The negative Oedipus complex is the opposite and feminine version of the male Oedipus complex. Like the Oedipus complex, it supposedly occurs in the phallic stage.

Freud claimed girls are often closer to their mothers than their fathers at birth. However, that changes when they reach the phallic stage. Like boys, girls notice their lack of penises during the phallic stage. For some reason, they, too, believe that they used to have penises but lost them after they were castrated.

Instead of developing castration anxiety like boys, the girls develop the Electra complex. This causes them to dislike their mother, who they blame for their castration. At the same time, they forge closer ties with their father over his possession of a penis. However, the girl reignites her relationship with her mother as she enters the latency stage.

As mentioned, Freud called this syndrome the negative Oedipus complex or the feminine Oedipus attitude. That changed in 1913, when Carl Jung, a one-time associate of Freud, renamed it the Electra complex. Freud rejected the name.

3 Medusa’s Head

The fabled Medusa is a major character in Greek mythology. She is depicted as a woman with poisonous snakes on her head. Any human unfortunate enough to stare at her face immediately turns into stone. So what has Medusa got to do with penises? A lot, obviously.

At this point, you’ve probably noticed that Sigmund Freud had a thing for penises. Well, he also managed to connect his theory of castration anxiety with the myth of Medusa. Freud wrote about the link between castration anxiety and Medusa’s head in 1922. However, the writing was only published in 1940, after his death.

Freud believed the feelings boys experience upon seeing that girls have no penises are similar to the feelings experienced by people staring at Medusa’s face. He added that Medusa and castration anxiety were comparable because they involved the forces of attraction and repulsion at the same time.

The boy experiencing castration anxiety becomes curious about girls when he discovers they do not have penises. At the same time, their apparently missing penises are a source of fear. Likewise, a man becomes scared when he sees Medusa with snakes on her head. At the same time, he feels a sexual desire for Medusa.

2 Big Shoes Equal Big Penises

Some people believe you can tell the size of a man’s penis by looking at his shoes. Larger shoes (and therefore feet) indicate larger penises and vice versa. Several studies have proven that this is false. Penis size has no correlation with shoe size.

A 1999 study of several hundred Korean men indicated there is no correlation between shoe and penis sizes. The researchers measured several body parts, including the mouths, hands, and feet, of 655 men to determine if there was any association between the sizes of their penises and said body parts. The researchers found no correlation. However, they observed that there was some relationship between the length and circumference of the penis.

The result of this study is backed by the results of several others, including one that involved 104 men. All showed that shoe size cannot be used to determine the size of the penis. Interestingly, a 1993 study of 63 Canadian men indicated that men with larger feet could be slightly more likely to have longer penises. However, that study is considered inconclusive.

1 Phallic Monism

Phallic monism refers to the idea that psychosexual development is defined by the possession (or lack thereof) of a penis. Having a penis is the norm, and lacking one is a deviation from that norm.

Remember the five stages of psychosexual development we mentioned earlier? Freud initially proposed four stages. They were the oral, anal, latency, and genital stages. However, he later revised it to include the phallic stage in between the anal and latency stages.

We already mentioned that children generally realize the differences in each others’ genitals during the phallic stage. This is the major difference between the phallic and genital stages. While both involve the sexual organs as the peak source of pleasure and could erroneously be considered the same, the phallic stage involves dealing with the possession or lack of a penis. The genital stage focuses on sexual relations.

Nevertheless, phallic monism was controversial among female psychologists, who offered heavy criticism and pro‑female theories in return. Some wrote that males’ desire to have sex with females gives the latter the upper hand despite their lack of penises and supposed suffering from penis envy.

Like urban legends, the 10 most persistent health myths have a strange talent for hanging around despite solid scientific evidence to the contrary. Whether they stem from old‑wives’ tales, misread headlines, or well‑meaning but misguided advice, they keep popping up in conversations and on the internet. In this article we’ll roll up our sleeves and bust these ten stubborn misconceptions wide open, so you can separate fact from fiction once and for all.

10 Most Persistent Health Myths

10 The Myth: “You Can’t ‘Sweat Out’ Toxins During Exercise”

The classic notion that a vigorous workout can magically flush out toxins like a sponge is more fantasy than fact. I’m sorry to deflate that detox dream, but perspiration isn’t a wholesale toxin‑removal system. While sweating does cool you down and can shed a bit of water weight, it isn’t a superhero that eliminates all the junk you indulged in over the weekend.

Here’s the lowdown: sweat is primarily made up of water, salt, and a few minerals. It contains hardly any of the harmful substances we worry about. The real detox champions are your liver and kidneys, which break down and expel waste products through metabolism and urine.

So, that hot‑yoga session may leave you feeling zen, but it isn’t a secret internal cleanse. The true path to a toxin‑free body involves staying hydrated, eating a balanced diet, and giving those vital organs the support they need. Think of it as a team effort where sweat does its job—cooling you—while the liver and kidneys handle the heavy lifting.

The next time someone claims a brutal spin class is a full‑body spa, smile and recall that your liver is the star of the detox show. Cheers to keeping it real: let sweat do what it does best—cool you down and make you feel like a fitness champ—while the real detox work happens behind the scenes.

9 The Myth: “Eating Carbs at Night Makes You Gain Weight”

Forget the midnight‑snack guilt trip! The idea that munching carbs after dark automatically adds pounds is a myth begging to be busted. Dim the lights, grab your favorite comfort food, and let’s untangle this bedtime story.

Your body doesn’t transform into a carb‑hoarding gremlin once the sun sets. Weight management hinges on total daily calories, not the clock on the wall. There’s no built‑in sundial that tells your metabolism to stash fat after 6 p.m.

In fact, consuming carbs at night can be advantageous. Carbohydrates boost serotonin production, the “feel‑good” neurotransmitter that can double as a sleep‑inducing fairy godmother. A satisfied stomach often leads to better sleep, and that’s a win‑win for anyone who enjoys sweet dreams alongside a plate of pasta.

8 The Myth: “Cracking Your Knuckles Causes Arthritis”

The satisfying pop‑pop‑pop of knuckle cracking has long been linked to the dreaded diagnosis of arthritis. Fear not, fellow knuckle enthusiasts, because this myth is as cracked as the joints themselves!

Scientific studies reveal no connection between the audible snaps and the development of arthritis. The habit is more akin to a harmless percussion performance than a sinister omen of joint doom.

When you crack your knuckles, you’re releasing gas bubbles that have built up in the synovial fluid—a lubricant that keeps your joints moving smoothly. Think of it as a tiny round of applause for your fingers, not a secret handshake with arthritis.

7 The Myth: “Eight Glasses of Water a Day for Everyone”

We’ve all heard the mantra: drink eight glasses of water daily. Some of us even lug around a jug that could fill a small pool just to hit that quota. Time to splash some truth on this hydration hype.

First off, hydration needs vary as much as our Netflix preferences. The one‑size‑fits‑all eight‑glass rule is as reliable as predicting the weather with a crystal ball. Our bodies are smart—they signal thirst when needed, and it’s not always a strict eight‑glass memo.

Also, did our ancestors wander the savannah lugging water bottles? Probably not. The notion that everyone must chug a fixed amount of water each day has about as much scientific backing as a distant uncle’s conspiracy theory.

So sip wisely, friends. Hydration is essential, but there’s no need to drown yourself like you’re auditioning for a mermaid role. Listen to your body’s cues, and remember that coffee, tea, and other beverages also count toward your fluid intake.

6 The Myth: “Being Cold Gives You a Cold”

Blaming chilly weather for catching a cold is like blaming rain for frizzy hair. This myth is as frosty as an ice‑cream cone in Antarctica.

Catching a cold isn’t a game of tag with the winter breeze. Colds are caused by viruses, not by shivering in the cold like a penguin caught in a snowstorm. So when someone insists that your runny nose is the direct result of a chilly wind, politely point out that viruses—not temperature—are the real party crashers.

Being cold may make you uncomfortable, but it won’t summon the common cold virus like a frosty magician pulling a rabbit from a hat. Bundle up, enjoy the winter wonderland, and keep those viruses at bay.

5 The Myth: “No Pain, No Gain”

This classic gym mantra—“No Pain, No Gain”—sounds like a battle cry from fitness gods, urging you to push through the burn for the sake of gains. Let’s debunk this mantra with a dash of wisdom and a pinch of humor.

Pain is your body’s way of saying, “Hey, something might be off here!” It’s not a VIP pass to the gain train. It’s more like a red flag waving in the breeze. While a little discomfort is normal during workouts, treating pain as a badge of honor is akin to saying you enjoy stubbing your toe just for the thrill.

Gains don’t exclusively come from punishing your body into submission. The secret lies in finding the sweet spot between challenge and self‑care—think of it as a spa day for your muscles, minus the soothing music and fluffy robes.

4 The Myth: “Eggs Raise Your Cholesterol and Are Bad for Your Heart”

The belief that eggs are tiny cholesterol grenades ready to explode your heart health has been cracked wide open! Contrary to popular belief, eggs are not the villain in the heart‑health saga; they’re the heroes of breakfast.

Let’s scramble the facts: eggs do contain cholesterol, but they also boast high‑quality protein and essential nutrients that make them “eggstraordinary” for overall well‑being. Studies show that for most people, dietary cholesterol from eggs doesn’t translate into higher blood cholesterol levels.

The incredible edible egg is a powerhouse of nutrients—from brain‑boosting choline to eye‑loving lutein. In the grand breakfast buffet of life, eggs have rightfully earned their spot. So crack open those shells, embrace the yolks, and let the cholesterol myth become a sunny‑side‑down story of the past.

3 The Myth: “Detox Diets Cleanse Your Body”

Detox diets promising to cleanse your body like a superhero fighting off toxins sound tempting, but let’s unravel the truth behind this health myth. Contrary to popular belief, your liver and kidneys aren’t slacking off on the job—they’re the real deal for detoxifying your system.

Detox diets often brag about magical elixirs and exclusive blends that claim to purge your body of impurities. Science, however, tells a different story. The human body is a well‑oiled detox machine, breaking down and eliminating waste without needing a trendy juice cleanse.

Instead of splurging on pricey concoctions that promise miracles, focus on feeding your body a balanced diet rich in fruits, veggies, and water. Your organs will thank you for the good stuff.

2 The Myth: “More Sweat Equals More Calories Burned”

Ever watched someone drenched in sweat at the gym and assumed they’re torching calories like a furnace? Sorry to burst that sweaty bubble, but the notion is as false as claiming chocolate makes for a nutritious breakfast.

Sweating feels like a victory lap, but it’s not a reliable gauge of calorie‑burning prowess. Sweat is your body’s cooling system, not a sign you’ve turned into a human calorie‑burning furnace.

Consider a summer stroll in scorching heat—it may leave you drenched, yet it won’t magically transform your walk into an Olympic‑level calorie burn. It’s the exercise itself—not the sweat—that makes the real difference.

The next time you see someone sweating buckets on the treadmill, give them a nod for their commitment. Remember, it’s the effort they put in, not the amount of sweat, that torches those calories. Keep calm, carry a water bottle, and let sweat flow naturally without expecting it to be a calorie‑burning magic potion.

1 The Myth: “Fat‑Free Means Healthy”

The notorious “Fat‑Free Means Healthy” myth is like a unicorn of dieting—too good to be true. In reality, the absence of fat doesn’t automatically turn a snack into a nutritional superhero.

Sure, fat gets a bad rap, but not all fats are created equal. Healthy fats found in avocados and nuts belong in a balanced diet. The problem with the fat‑free frenzy is that it often leads to a sneaky surge of added sugars and mysterious chemicals that sound more like lab experiments than snack ingredients.

When manufacturers strip out fat, something has to fill the flavor void—usually sugar or artificial flavorings, which can dance on your health goals like a mischievous imp. The result is a snack that looks healthy but is essentially a sugar‑coated mirage.

The truth? Embrace the good fats, steer clear of sugar‑laden impostors, and remember that balance is the real name of the game. After all, life’s too short to deprive yourself of the delightfully creamy wonders that healthy fats bring to the table.