biological clock

Fighting biology is hard.

This atlas maps what time it is in different parts of your body.

There are tiny clocks inside you, and they're all out of whack.

Here’s one more way our modern sleep schedules might be killing us.

But these eyedrops are a long way off

Women’s fertility declines with age, but a biotech company says it has a way to change that

A new technique for identifying the precise biological age of human tissue reveals that not all tissues grow old at the same rate.

The flu knows how long it has to invade our cells and spread to other humans. So new treatments could fight the virus by resetting its clock.

The simple tricks to fool Earth-evolved humans into living on Mars time.

Could be a cure for jet lag