11 Facts That Have Been Disproven, but People Still Believe Them

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In a world where information is readily accessible, it might come as a surprise that some widely held beliefs are, in fact, based on misconceptions and falsehoods. These misconceptions, often passed down through generations, continue to shape our understanding of the world.

From the purported shortness of Napoleon Bonaparte to the famous “five senses,” prepare to uncover the truth behind these enduring myths and the reasons they remain steadfast in our collective consciousness.

1. Humans Only Use 10% Of Their Brains

Neurologist showing brain scan to young woman in clinic.
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Despite the widespread belief that humans only use 10% of their brains, scientific research has repeatedly debunked this notion. Brain imaging studies have shown that even during rest, various regions of the brain are active. The brain is an incredibly complex organ, and virtually every part of it serves a purpose, from processing sensory information to regulating bodily functions.

2. Bulls Are Enraged by the Color Red

Bullfighting is a traditional game of Thailand.
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Contrary to the common misconception perpetuated by bullfighting and popular culture, bulls are not actually enraged by the color red. In reality, bulls are color-blind to red. They respond to the movement of the matador’s cape, not its color. This myth likely arose due to the traditional use of red capes in bullfights.

3. Napoleon Bonaparte Was Extremely Short

Statue of Napoleon Bonaparte as First emperor of France, Ajaccio, island of Corsica.
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Many people still believe that Napoleon Bonaparte was exceptionally short, earning him the nickname “Napoleon complex.” However, historical records show that Napoleon was actually around 5 feet 6 inches (1.68 meters) tall, which was average for a man of his era. His short stature myth likely emerged from a misinterpretation of French measurements.

4. Lightning Never Strikes the Same Place Twice

Lightning Strike
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It’s a commonly held belief that lightning never strikes the same place twice. However, this is far from the truth. Lightning can and does strike the same location multiple times, especially in areas with high conductivity, like tall buildings, mountains, or lightning rods. Lightning follows the path of least resistance, and if a particular spot provides a convenient path, it can be struck repeatedly.

5. Goldfish Have a 3-Second Memory Span

koi goldfish, commercial aqua trade breed of wild Carassius auratus carp, curious and cute comet-like long tail ornamental fish communicate in low light nature anubias design tank
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The idea that goldfish have a mere 3-second memory span is a persistent myth. Research has shown that goldfish can remember information for much longer periods, some up to several months. They can also learn and adapt to their environments, which wouldn’t be possible with such a short memory span. This misconception likely arose from the belief that their attention span is extremely limited.

6. The Great Wall of China Is Visible From Space

China famous landmark great wall and mountains.
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Contrary to popular belief, the Great Wall of China is not visible from space with the naked eye. It is a relatively narrow structure and often blends in with its natural surroundings. Astronauts in orbit can only see it with the aid of powerful telescopic lenses. The notion that it’s visible to the naked eye likely originated as an exaggeration.

7. Sugar Causes Hyperactivity in Children

Kids having fun playing on kitchen pans at home
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Many parents still believe that sugar causes hyperactivity in children, leading to the ban on sugary treats during certain occasions. However, numerous scientific studies have failed to establish a direct link between sugar consumption and increased hyperactivity in kids. The perception may arise from the excitement of special events rather than the sugar itself.

8. Daddy Longlegs Are the Most Poisonous Spiders

Brown harvestman (Daddy Longlegs) relaxing on leaf.
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It’s a common myth that daddy longlegs are the most poisonous spiders in the world but lack the fangs to bite humans. In reality, daddy longlegs, also known as harvestmen, are not even true spiders. Moreover, they do not possess venom glands or fangs to inject venom, making them harmless to humans.

9. The Tongue Map for Tasting Different Flavors

Man tasting spaghetti pasta while smiling woman look at him. Closeup face of young man tasting meal while cooking at home. Handsome guy eating noodles with fork in kitchen and feel his recipe.
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The idea that different regions of the tongue are responsible for perceiving specific tastes (e.g., sweet, salty, sour, bitter) is a widely held misconception. Scientific research has shown that taste receptors for all primary tastes are distributed across the entire tongue. Taste perception is not limited to certain tongue regions, as previously believed.

10. Chameleons Change Color to Camouflage

Chameleon on the flower. Beautiful extreme close-up.
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While chameleons are indeed known for their ability to change color, it’s not primarily for camouflage. Instead, they change color in response to various stimuli, including temperature, mood, communication, and social interactions. Camouflage is just one of the reasons behind their color-changing abilities, but it’s not the sole purpose.

11. The Five Senses Are the Only Way To Perceive the World

Asian woman meditating in the woods. Forest yoga. Mindfulness.
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Many people still hold the belief that humans have only five senses—sight, hearing, taste, smell, and touch. In reality, humans have a multitude of sensory systems, including proprioception (awareness of body position), thermoception (sensitivity to temperature), and nociception (pain perception). These additional senses play crucial roles in how individuals interact with and perceive their environment.

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Rear view of the statue of Napoleon Bonaparte in the Hotel des Invalides in Paris, France, with the french flag flying in the distance.
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History is like a grand tapestry woven with stories and events passed down through generations. Yet, as time goes by, some of the threads in this tapestry begin to fray and unravel. It turns out that not everything we think we know about the past is as accurate as it seems.

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YEREVAN, ARMENIA - OCROBER 08, 2019 Kim Kardashian is giving a speech in Armenia during the WCIT forum.
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serious old man at park.
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