Night owls get a bad rep, but it might be time to leave that shame behind.

When your sleep pattern changes, whether it’s because of your job or daylight saving time, your bipolar moods can change, too. Here’s how to adapt. Time changes — whether due to daylight saving time ...

The end of daylight saving time can disrupt your body's internal clock, or circadian rhythm. Studies have linked time changes to increased health risks, including depressive episodes and car accidents ...

Discover why sleep is more powerful than you think—and how a lack of it can quietly impact everything from your mood to long‑term brain health.

It’s easy to think that a few minutes less sleep won’t make much difference. But research shows that, during adolescence, even a short change in bedtime can shape brain development and thinking skills ...

Always tired in the mornings? Getting up feels especially hard during the dark season. But how accurate is this perception?