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Archeologists have found evidence from 20,000 to 30,000-year-old human skulls that both human height and brain size are shrinking. The cause of this? Farming. This shrinkage started about 10,000 years ago, when humans moved from the hunter-gatherer life to agriculture.

In PhysOrg.com, Deborah Braconnier writes, "While the change to agriculture would have provided a plentiful crop of food, the limiting factor of farming may have created vitamin and mineral deficiencies and resulted in a stunted growth. Early Chinese farmers ate cereals such as rice which lacks the B vitamin niacin which is essential for growth."
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It’s spring! Many people are relieved that this spring, which brought terrible weather to many places, has past, and that summer is here. Does spring weather really change our behavior? Recent studies show that temperature influences us at an unconscious level. For instance, good weather makes us more likely to donate money to charity.
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It’s an unfamiliar neighborhood and you find yourself in the middle of a bunch of streets and buildings you’ve never seen before. Giving the environment a quick once-over, you make a snap decision about whether you’re safe or not. And chances are, that first "gut" call is the right one.
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