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8 Facts That everybody must know

By 05:24

  • It’s Impossible to lick your Elbow
  • When you sneeze, your heart skips a beat
The idea that a sneeze stops your heart is up there with the ancient belief that a big ah-chooblows your soul right out of your nose. Both are myths with murky origins, and neither makes much sense.
Sneezing or, if you like to impress your friend with big words, sternutation is a reflex centered in a section of the brainstem called the medulla. When something tickles the upper lining inside the nose, nerves carry the signal to the medulla, which then triggers the eyes to close, the chest to contract, and the lungs to expel a burst of air at speeds approaching 100 mph.
  • A duck's quack doesn't echo, and nobody knows why.
Acoustical engineers have empirically demonstrated that a duck's quack does, in fact, echo.
  • We use only a fraction of our brains
In 1907, famed psychologist William James claimed, “We are making use of only a small part of our possible mental and physical resources.” A journalist later misquoted him as saying the average person develops only 10 percent of his mental capacity. Scans, however, show that we use every part of our brain, though not all regions are active at once. (Sorry, Morgan.)
  • Drinking alcohol kills brain cells.
That woozy feeling you get after three or four glasses of wine isn’t from brain cells expiring. When scientists at the Bartholin Institute in Denmark compared the brains of deceased alcoholics and nonalcoholics, they found the total number of neurons to be the same. Alcohol, like other substances, can kill brain cells at high doses (especially the sensitive brain cells of developing fetuses), but moderate alcohol use does not.
  • Your ring finger is the only finger with a vein that connects to the heart.
So, where do the remaining fingers get their blood from? Probably those who do this propaganda have another blood pumping organ in their body the remaining fingers are connected to. This myth sounds romantic though.
  • Eating Before Swimming Gives You Cramps
No one has ever drowned from swimming on a full stomach. It may be a little uncomfortable but the idea that digesting food draws blood away from the muscles is rubbish.
  • Jesus’s Birthday is on 25th December
Christmas is the most popular Christian holiday. On December 25th , we celebrate the birth of our Lord and Savior, Jesus Christ. This is because Jesus was born on Christmas, right? Wrong, actually. Nowhere in the Bible is December 25th mentioned as Jesus’s birthday. In fact, there are few clues in the Bible that reveal Jesus couldn’t have been born on that date. For starters, shepherds were out with their flocks, highly unlikely for winter. And second, his parents came to Bethlehem to register for a Roman census. It is hard to believe that Romans, ever practical, would schedule such an important event in winter. Early Christians suggested several dates for Jesus’s birthday, like November 13th or March 28. In the end, they all settled on December 25th , for one simple reason. It was on this date (or near to it) that several Pagan festivals were held, like Roman Saturnalia and Sol Invictus festival, as well as celebration in honor of Persian god of light Mithra. And yet, millions of people around the world celebrate this date, convinced by a clever ploy that was the day Jesus Christ was born.

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