Sleep Scientists’ Tips for a Healthier Time Change

Sleep Scientists’ Tips for a Healthier Time Change

Circadian researchers explain why a single hour can rattle your body, and the simple steps that streamline the switch.

Our internal body clock influences nearly every aspect of our health, including hormones, metabolism, immune function, and brain activity. And it doesn’t like being reset.

Recent research reveals how the twice-yearly switch to and from daylight saving time disrupts that delicate rhythm in ways that affect our sleep, mood, and health.

According to experts, morning light advances the body clock, making you wake and sleep earlier, while evening light delays it, making you stay up later.

It usually feels that way — but that doesnnowled mean “falling back” won’t disrupt your internal clock.

Author's summary: Tips for a healthier time change.

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WebMD WebMD — 2025-10-30

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