34 Scientific Misconceptions We All Need to Collectively Shake Off

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34 Scientific Misconceptions We All Need to Collectively Shake Off

Maybe you picked them up from a TV show or movie, maybe you heard them on the playground, maybe theyre common “knowledge” passed down from generation to generation. Wherever they came from, its time to excise these myths, STAT.

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CHLOROFORM TAKES 5 MINUTES TO TAKE EFFECT. Unlike in action movies, you can't just use a towel over someone's face to knock them unconscious. CRACKED.COM

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YOU CAN'T TRICK A SCANNER WITH A SEVERED HAND ID POSITIVE Biometric scanners check the capillary flow through your hand, not just the palm print. CRACKED.COM

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MYTH: HEALTHY TeeTH ARE GLEAMING WHITE. FACT: THE NATURAL COLOR FOR TeeTH IS YELLOW. You might think white teeth are attractive, but as far as being natural, they're the dental equivalent of fake breasts. The actual color of healthy human teeth is yellow. Know what's unhealthy? Whitening your teeth, either by bleaching or scouring off the enamel. See, tooth enamel is bluish- white. It's the dentin below the enamel that's yellow. CRACKED.COM http://www.sciencefocus.com/qa/are-yellow-teeth-stronger

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MYTH: omeGA-3 OIL IS GOOD FOR YOUR BRAIN. FACT: THERE'S no RELIABLE evidence THAT IT IS. The idea of omega-3 fatty acids being brain food comes from the fact that our brains already contain quite a lot of the stuff. However, none of the supposed brain benefits of consuming omega-3 fatty acids have been conclusively proven. In fact, studies that incorporated important stuff like peer review and double-blinds found no brain benefits. CRACKED.COM https://eric ed gov/Pid=EJ878773

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MYTH: YOUR TONGUE IS zoneD BY FLAVOR TYPE. BITTER SALTY SALTY SOUR SOUR SWEET FACT: YOUR WHOLE TONGUE TASTES THINGS. The myth about your tongue being able to taste different flavors with different areas started with a mistranslation of an old German study. Turns out all areas in the tongue are about equally good at detecting different flavors. It's not an evenly distributed democracy of taste buds, but every tongue has different patterns of strength and weakness. CRACKED.COM http://www. livescience.com/7113-tongue-map-tasteless-myth-debunked.html

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MYTH: YOU Lose most OF YOUR BODY HEAT THROUGH YOUR HEAD! FACT: YOU Lose HEAT THE SAme ALL OVER. Turns out covering one part of the body has as much effect as covering any other. The origin of this myth can be traced back to a 1950s U.S. Army study that put several test subjects through bitter cold conditions to measure the amount of body heat lost. But the army neglected to give their subjects hats. So naturally they lost heat through their heads. CRACKED.COM https://www. .theguardian.com/science/2008/dec/17/medicalresearch-humanbehaviour

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MYTH: HAIR AND NAILS keep GROWING AFTeR DEATH. FACT: THEY Don'T. THE REST OF YOU SHRIVELS. Just like anything else in your body, hair and nail growth require a constant supply of nutrients, oxygen, and blood to keep going. The myth probably stems from the fact that after death, the body starts to dry up and shrivel, and the skin pulls away from the nails and hair in such a way that by comparison it looks like they're getting longer. CRACKED.COM http://www. smh.com au/lifestyle/do-your-nails-and- hair-continue-to-grow-affer-death-20130606-2ntmy

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MYTH: FINGERPRINTS ARE ALL SUPER unique. FACT: THeY'Re ACTUALLY WORRYINGLY SIMILAR. Your fingerprints aren't all that unique - relatives will have matching ridges, for example - and even if they were, there are a large number of variables that can make technically different prints seem very similar. Fingerprint collection is so flawed, and the analysis so subjective, that even experts will get different results from the same set of prints. CRACKED.COM https://www. theguardian.com/science/2007/mar/23/crime.penal

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MYTH: SHAVING OFF HAIR MAKES IT GROW BACK DARKER AND COARSER. FACT: SHAVING Doesn'T CHANGE HAIR TEXTURE. Facial and body hair is slightly tapered at the end. When you shave it, you're chopping it mid-strand and giving it a blunt tip. That tip might feel coarse or rough for a little while as your hair grows out. But even though the hair might be more noticeable and look darker or thicker, it isn't. CRACKED.COM http://www. mayoclinic org/healthy-lifestyle/adult-health/expert-answers/hair-removal/faq-20058427

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