Humans and most other organisms have internal biological clocks that track the daily cycle of sunrise and sunset. These ...

The researchers also found that the clock usually peaks in activity during the early night, similar to the mother’s rhythm.

A new hair-based test offers a surprisingly simple way to peer into the body’s internal clock. A team at Charité – Universitätsmedizin Berlin has developed a new way to read the body’s internal clock ...

Twice a year we change our clocks by an hour, with Daylight Saving Time sending the clocks back an hour in spring, and ending when the clocks go forward an hour in the fall to return us to Standard ...

When does the circadian clock start ticking? A new study shows that fetal clocks synchronize to the mother in the womb via hormones, highlighting the importance of light and sleep during pregnancy.

Muscle cells contain their own circadian clocks and disrupting them with shift work can have a profound impact on aging, according to the results of a preclinical study carried out by Jeffrey Kelu, ...