A recent study observed sleeping participants' pupils during sleep, using a new method that could have implications for studying sleep disorders. Reading time 2 minutes Though sleep is a time to power ...

In the quiet hours of the night, while your body rests, your brain is busy. It's sorting through the day’s moments, filing some away as lasting memories, and brushing off others. Scientists have long ...

Learn facts about sleep, during which the body rests, recuperates and performs essential repairs. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works.

Waking up at 2 a.m. and struggling to fall back asleep can be frustrating, and staring at the ceiling only makes it worse. But a new viral trick gaining traction on TikTok might offer surprising ...

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