Recently, German researchers fed lab mice separate "human" and "chimp" diets, and within just two weeks, were able to notice distinct psychological and genetic differences in the rodents. There were three different diets: a raw food-only diet; meals from the researchers' local cafeteria; and a pure fast-food diet. The researchers found a huge difference in the livers of the mice with a chimp diet versus those with a human diet (I'm scared to hear about the difference in their hearts and arteries!) They found thousands of differences in the genes expressed in the mouse livers, which they think may be caused by our differences in diets.
...You got all that? Okay. The scientists also found that said genes seemed to evolve faster than other genes.
So, basically, our ancestors' adoption of meat and cooked foods may have shaped us into the carnivorous, brownie-eating, beer-guzzling beings we are today.
It's not our
fault. It's evolution, man. When the days are short and the weather is cold, all we want to do is snuggle into our
comfiest chair with a blanket, a 
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