10 More Common Myths Busted What You Always Got Wrong (Part 3)

10 More Things People Have a Wrong Understanding About (Part 3)

We love a good myth — until science quietly shows us the truth. From medieval bathing habits to modern food fads, some ideas have stuck around for centuries simply because they sound right. So, let’s take another dive into the strange world of “facts” that aren’t facts at all.

1. Medieval hygiene wasn’t hopeless.
People in the Middle Ages didn’t live in filth. Many cities had public bathhouses, nobles used scented herbs in their baths, and personal washing was part of daily life. The “dirty medieval” image comes from later centuries, not reality.

2. Columbus didn’t “discover” America.
Indigenous peoples had been there for tens of thousands of years — and Leif Erikson reached North America five centuries before Columbus. The idea that Columbus “discovered” a new world is a historical invention that became national myth.

3. Glass doesn’t flow.
Old cathedral windows aren’t thicker at the bottom because glass moves over time. They’re uneven because of how medieval glass was made — hand-blown, flattened, and spun. Over a billion years, glass might shift by a nanometer. Hardly dramatic.

4. A penny from the sky won’t kill you.
Physics wins again. A falling penny quickly reaches terminal velocity — about 25 mph — meaning it might sting, but it’s not deadly. MythBusters confirmed this one in style.

5. Hair and nails stop growing after death.
They only appear longer because the skin dehydrates and pulls back. No zombie manicure happening here.

6. “Left-brained” or “right-brained” people don’t exist.
You use your entire brain all the time. Creativity, logic, language, and emotion are all networked across both hemispheres. The left-vs-right divide is pure pop psychology.

7. Antibiotics don’t kill viruses.
Colds, flu, and bronchitis are viral — antibiotics can’t touch them. Taking them unnecessarily helps bacteria evolve resistance, which is far more dangerous than waiting out a sniffle.

8. Sweat doesn’t detox you.
Saunas and workouts are healthy, but they don’t “flush out toxins.” That’s your liver and kidneys’ job. Sweat mostly cools you — it’s 99% water.

9. MSG isn’t evil.
The flavor enhancer that gives umami its kick is perfectly safe. The “Chinese Restaurant Syndrome” scare came from a single letter in 1968, not real science — and was fueled by bias more than biology.

10. Organic food isn’t automatically more nutritious.
Eating organic can reduce pesticide exposure and help the environment, but studies show little to no difference in nutrient content compared to conventional produce. “Organic” is often a lifestyle choice, not a nutritional upgrade.

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We’ve come a long way from believing lightning never strikes twice — yet myths still thrive in the age of information. It’s a reminder that curiosity, not certainty, is the real sign of intelligence.

Stay curious. Stay skeptical.
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