As anticipation builds for the longer days that follow this weekend's switch to daylight savings time, the moment seemed ...

Our circadian clocks play a crucial role in our health and well-being, keeping our 24-hour biological cycles in sync with ...

As sunlight filters through your window each morning, a quiet, powerful rhythm pulses inside your body. This inner clock tells you when to sleep, eat, and wake. It keeps pace with the 24-hour cycle of ...

How old are you really? Counting birthdays may be a common tally, but your “age” isn’t determined by time alone. New research increasingly shows the importance of considering chronological age as ...

When it comes to fertility, the focus tends to fall on women and their (loudly ticking) biological clocks. Yet it’s not just women who have to take age into account when considering when to have ...

Better understanding Alzheimer's disease's effects on the biological clock could also have implications for preventing the disease. Poor sleep quality in adulthood is a risk factor for Alzheimer's, as ...

In cold-blooded vertebrates, deep-brain photoreceptors allow for photoentrainment, the process by which the eyes facilitate setting of the circadian clock. Mammals do not have these receptors; instead ...

The news that autism and schizophrenia may be related to paternal age has brought mixed feeling to the legions of women who have long been warned about the dangers of trying to have children too late.