Life Science

From the smallest microbe to the largest mammal, Life Science explores the origins, evolution and expansion of life in all its forms. Explore a wide range of topics from biology to genetics and evolution.

Learn More / Page 26

How Sleep Works

Every animal sleeps -- some more than others -- but why they do it is a mystery to scientists. Is sleep more than just beauty rest? Could skimping on it kill you? And how much do you really need?

By Marshall Brain Inside the Mind / The Human Brain

Can you lose weight faster if someone pays you to do it?

Anything that motivates you to better health is a good thing, right? But could cold hard cash actually be the "magic bullet" so many dieters seek?

By Maria Trimarchi Inside the Mind / The Human Brain