Wednesday, August 3, 2011

2# Lies | You Lose Most of Your Body Heat Through Your Head

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One of mom's most important pearls of wisdom probably still echoes through your head: "Don't go out without a hat, Junior. You lose most of your body heat through your head." Popular opinion tends to side with her on the issue. After all, heat rises.

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Which is why samba classes should never be held in high-rise buildings.
The Truth:
Your head is not some broken radiator that needs fixing. The percentage quoted in this myth will vary from person to person, some telling you that a hatless head will cost you up to 80 freaking percent of your body heat.
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Both of the men in this photo froze to death immediately after it was taken.
In reality, covering one part of the body has as much effect as covering any other. The origin of this myth can be traced back to the 1950s. In one of the least-thought-out studies of all time, the U.S. Army decided to put several test subjects through bitter cold conditions and then measure the amount of body heat they lost. Teeny tiny little detail: the army decked out the subjects in the latest Arctic survival gear but neglected to give them hats.
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"It's been 40 minutes and subject retains consciousness. Jim, release the bears."
So while the subjects did in fact lose a comparatively large portion of their body heat through their heads, of course the subjects lost most of their body heat through their heads! What the hell else was the military expecting?! The U.S. Army scientists then proudly printed out their survival manual with the advice that you better cover up your head, because you lose 40 to 45 percent of your body heat through it, thus giving every mother in the world her three favorite things: 1) A bullshit statistic to recite; 2) a reason to worry about her children and 3) an excuse to put them in adorable hats.
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As if they needed one.
Scientists who weren't retarded later found out that, all things being equal, you lose no more than 10 percent of your body heat through your head. The chest, head and face are also more sensitive to changes in temperature, making it feel as if you're losing more heat through them in the cold, but the truth is that the head itself loses no more heat than any other part of your body.
Having said that, you should still cover your head during bitterly cold weather. The same goes for your forearms, your left foot and your taint.

By: SpectaNews

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