Health

Science Says: How daylight saving time affects health

Office workers bemoan driving home in the dark. Night owls relish the chance to sleep in. As clocks tick toward the end of daylight saving time, many sleep scientists and circadian biologists are pushing for a permanent ban ...

Health

Sleep starts later as teens age, but school still starts early

A newly published study used activity monitors to track how sleep habits changed in younger and older teens as they grew during a two-year period. Key findings, for instance that the children fell asleep later as they matured ...

Overweight & Obesity

Obesity declines among rich US teens, rises in poor

In the past decade, obesity has declined among US teenagers from rich families but has risen among their impoverished counterparts, a gap driven by lack of exercise, said a study Monday.

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