Add Yahoo as a preferred source to see more of our stories on Google. A new study reveals how waveform distortion keeps your body clock stable despite changes in temperature. (CREDIT: Getty Images) 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 ...

Add Yahoo as a preferred source to see more of our stories on Google. Syncing your circadian rhythm to a natural light-dark cycle could improve your health and well-being. nambitomo/iStock via Getty ...

Morning-blooming morning glories and flowers that release fragrance at night seem as if they know the time. A KAIST research team has uncovered, at the molecular level, the workings of a "biological ...

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.

Our perception of time varies greatly depending on our age, mood, stress level and psychological health and stability. Psychological disorders, such as Parkinson's disease, attention deficit ...

Women in many times and places have felt pressure to bear children. But the idea of the “biological clock” is a particularly malevolent invention aimed to pressure women to have a child. In her ...

Since the beginning of the space program, astronauts have dealt with the realities of spaceflight from microgravity in weak muscles and space radiation, to sleep deprivation and disorientation. Both ...

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 ...