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Why do we sleep? We spend a third of our lives in slumber, but science has yet to determine exactly why we have do it. Here’s a look at how sleep works, why we’re not getting enough sleep, what happens if you DON’T sleep, and an idea about where sleep came from in the first place.
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Some people love the feeling of cracking their knuckles, while others cringe at the sound. But what causes that trademark pop? And is it dangerous? Eleanor Nelsen gives the facts behind joint popping.
Sugar is Killing Us is a campaign to spread information about the negative effects of sugar and empower people to make better food choices.
2012 • Health
From Oscar-nominated director Scott Hamilton Kennedy (The Garden) and narrated by Neil deGrasse Tyson, Food Evolution investigates the brutally polarized debate surrounding GMOs and our food. Traveling from Hawaiian papaya groves to banana farms in Uganda to the cornfields of Iowa, Food Evolution wrestles with the emotions and the science driving one of the most heated arguments of our time.
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What does it take to flush all the bad stuff from your body after a week-long bender? Or after several years of eating junk food? Can you atone for your health sins and start fresh?
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