“If you look at the actual increased risk” of one person gaining or losing an hour of sleep, the stakes are small, said Jamie ...

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.

Twice a year, Americans reset the clocks in a practice that has outlived its original purpose. An hour is added in spring and ...

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

What you need to know about the end of daylight saving time - often mistakenly called daylight savings time - which ends ...

Switching clocks twice a year disrupts circadian rhythms in ways that harm health. Stanford scientists found permanent ...

Proponents of permanent standard time contend that more morning light is better for our health. Organizations including the ...

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

Switching to permanent standard time would prevent about 300,000 cases of stroke per year and result in 2.6 million fewer ...

In the study published in the Annals of Behavioral Medicine, the researchers set out to determine the health impacts of everyday physical activities, including walking regularly and doing chores. The ...