A Stanford study shows daylight saving time raises health risks, while standard time better aligns with human biology.

For many people, especially those with a natural inclination to stay up late—known as “night owls”—modern life can feel like ...

Prof Zeitzer added that if you get light exposure “at the wrong times” it can weaken the circadian clock, which isn’t good news for our bodies. An out-of-sync circadian cycle has been associated with ...

Stanford study predicts fewer obesity and stroke cases if the U.S. adopts permanent Standard Time, reshaping the daylight saving time debate.

Every year, people in the United States change their clocks twice—for daylight saving time in spring and back to standard ...

Winding clocks an hour back this fall, when daylight saving time ends for the year across much of the U.S., might do more ...

A new analysis from Stanford Medicine scientists shows that shifting clocks twice a year disrupts circadian rhythms and is linked to higher risks of stroke and obesity.

Stanford Medicine researchers have discovered there are long-term health hazards from changing the clocks twice a year—and ...

During and after chemotherapy, nearly half of cancer patients endure circadian rhythm disruptions, which worsens treatment ...