What Spicy Food Really Does to Your Body (and Why You Might Crave It)

Human ancestors lost most of their body fur 3 to 4 million years ago and did not don clothing until 83,000 to 170,000 years ago, meaning that for over 2.5 million years, early humans and their ancestors were simply naked, and that most illustrations of them reflect modern shame about nudity

Researchers discover zip code that allows proteins to hitch a ride around the body

Noninvasive imaging method can penetrate deeper into living tissue. Using high-powered lasers, this new method could help biologists study the body’s immune responses and develop new medicines.