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Food is Fuel

In this video excerpt from NOVA scienceNOW, learn about the potential energy contained in food. Correspondent and technology columnist David Pogue explores how a rat is digested by a snake and how food fuels the body. Scientist Stephen Secor demonstrates how to measure the amount of energy stored in

6 Things that Will Keep You Happy

If you've heard of the hedonic treadmill or hedonic adaptation, then you know that we have a baseline for our happiness level. And when that baseline level requirement increases, it becomes harder and harder to be happy. It's almost like the happiness rat race. This begs the question: "How do we fee

Tylenol and Hangovers: A Dangerous Mix?

Acetaminophen -- the active ingredient in Tylenol -- is bad news for your liver if you take too much of it. The same is true for alcohol. So should you avoid popping Tylenol to take the edge off the morning-after hangover? Probably yes -- although the biology behind how the two substances interac