The earliest ancestors of all backboned animals, including humans, may have viewed the world with four eyes, not just two. The remnants of those extra eyes persist in the human brain today as the pineal organ, which is deep inside our brain, ...
With dieting, we usually think of smaller portions and periods of fasting, but new research shows that there is a way to stick to standard meal sizes, or even eat more, while still substantially cutting the number of calories you take in.
Continuous sleep is a modern habit, not an evolutionary constant, which helps explain why many of us still wake at 3 am and wonder if something's wrong.
A mathematical equivalent of a microscope with variable resolution has shed light on why some atoms are exceptionally stable, a riddle that has persisted in nuclear physics for decades ...