As anticipation builds for the longer days that follow this weekend's switch to daylight savings time, the moment seemed ...
We have trillions of body clocks — a central one in the brain and others in each cell of our body. Here's how they work with light to control our health. When you purchase through links on our site, ...
"Biological aging tests," also called aging clocks, can predict your risk of age-related disease, disability, early mortality and more — but are they ready for prime time? When you purchase through ...