A new study found that women’s biological clocks are actually running faster than men’s — the internal clock that determines when we naturally sleep and wake runs about six minutes faster in women.

Israeli scientists have developed an innovative method to track the human body’s circadian rhythms, finding in a new peer-reviewed study that female sex hormones have a dramatic effect on the setting ...

Only four weeks of shift work-like patterns in female mice are enough to disrupt their biological clock and reduce fertility, according to research presented at the 25th European Congress of ...