There's research showing that too much light at night and not enough daylight is taking years off our lives. NPR health ...

This weekend the clocks will roll back, signalling the end of daylight saving time and the start of long, dark winters. Of course, there is the short-term perk: the fact it allows us an extra hour in ...

The circadian clock is fundamental to healthy metabolism and is determined by a central pacemaker in the brain. Peripheral clocks are found in almost all organs and are set to the central clock by ...