Exposing Everyday Myths You Have Always Believed But Are Completely False

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Many everyday myths have been passed down for generations, often accepted as truth simply because they are repeated so frequently. From health advice and common sayings to misunderstood scientific facts, these myths shape how we think and behave without us ever questioning them. However, modern science and critical thinking have debunked several of these widespread misconceptions. Here, we explore some of the most popular everyday myths that people still believe, despite clear evidence proving them false.


Myth 1: We Only Use 10 Percent Of Our Brain

One of the most enduring myths is the belief that humans use only 10 percent of their brain capacity. This idea has been popularised in films and media, suggesting untapped mental powers waiting to be unlocked. In reality, brain imaging technologies like MRI scans have proven that virtually all parts of the brain are active, even during simple tasks. Different regions are responsible for various functions, from sensory processing to memory and emotional responses. The notion of 90 percent of the brain lying dormant is purely fictional.

Myth 2: Lightning Never Strikes The Same Place Twice

Many believe that once a location is struck by lightning, it is safe from future strikes. However, this is far from the truth. Tall structures like skyscrapers, towers, and trees are frequently hit by lightning multiple times because they act as natural lightning rods. The Empire State Building, for instance, gets struck nearly 20 to 25 times every year. Lightning is guided by the laws of physics, not by any ‘once-only’ strike rule.


Myth 3: Sugar Makes Children Hyperactive

Parents often blame sugar for their children’s bursts of energy, but scientific research does not support this claim. Numerous controlled studies have shown no significant link between sugar consumption and hyperactivity in children. The perceived sugar rush is more likely influenced by the excitement of situations where sweets are consumed, like birthday parties, rather than by the sugar itself. This is a classic example of a placebo effect driven by expectations rather than actual biological reactions.

Myth 4: Hair And Nails Continue To Grow After Death

Another myth that sounds plausible but is scientifically inaccurate is the belief that hair and nails continue to grow after death. In reality, what happens is that the skin dehydrates and retracts after death, making hair and nails appear longer. There is no biological process that supports post-mortem hair or nail growth. This visual illusion has contributed to the myth’s longevity.


Myth 5: Goldfish Have A Three-Second Memory

The idea that goldfish can only remember things for three seconds is a widespread misconception. Scientific studies have shown that goldfish are capable of much longer memory spans, even up to several months. They can be trained to respond to specific sounds or feeding routines, indicating cognitive abilities far beyond the often-repeated myth.

Myth 6: Cracking Your Knuckles Causes Arthritis

Many people believe that cracking knuckles will eventually lead to arthritis. However, medical research has found no direct connection between the habit of knuckle-cracking and the development of arthritis. The popping sound is caused by the formation and collapse of air bubbles within the joint fluid, not by bones grinding against each other. While excessive knuckle cracking might lead to minor hand swelling or reduced grip strength, arthritis is not a proven consequence.

Myth 7: You Must Wait 24 Hours Before Reporting A Missing Person

Television dramas often suggest that one must wait 24 hours before filing a missing person report. In reality, law enforcement agencies recommend reporting a missing person immediately, especially in cases involving children, elderly individuals, or vulnerable adults. The initial hours are critical for a successful search, and there is no legal requirement to wait.

Myth 8: The Great Wall Of China Is Visible From Space

This is one of the most popular myths worldwide. While the Great Wall of China is indeed massive, it is not visible to the naked eye from space. Astronauts have confirmed that the wall is barely distinguishable without aid, as it blends into the surrounding terrain. Several human-made structures, such as airports and large highways, are far more noticeable from orbit than the Great Wall.


These everyday myths demonstrate how easily misinformation can become part of common knowledge. Whether through cultural traditions, media influence, or simple misconceptions, false beliefs persist across societies. By questioning what we have been told and seeking scientific evidence, we can better understand the world around us and avoid falling prey to popular but unfounded myths. The next time you hear a 'fact' that sounds questionable, it might be worth taking a closer look.