Why daylight saving time is worse for your body than standard time

Why daylight saving time is worse for your body than standard time
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At 2 o’clock this morning, 48 states and the District of Columbia reset their clocks and fell back into standard time. From a health standpoint, most sleep and circadian experts say we should stay here.

Experts say early-morning sunlight is key to maintaining our circadian rhythms, sleep-wake cycles and overall health. Phyllis Zee, a neurologist and chief of sleep medicine at Northwestern University Feinberg School of Medicine, said without that sunlight, we can slip into circadian misalignment — “when your internal body clocks fall out of sync with that of the sun clock and your social clocks .”

The concern with adopting a permanent change to daylight saving time, which the Senate has voted to do, is that it may chronically throw our bodies out of sync with the sun and lead to a variety of health problems, sleep experts say.

“We would be misaligned all year long,” said Beth Malow, professor of neurology and pediatrics and the director of Vanderbilt University’s sleep division.

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