Michael Gradisar, Sleep Cycle’s head of sleep science, evaluated five popular sleep hacks and revealed whether to toss ’em — or turn ’em into reality. “Let’s just say those of us who ...

Net sales totaled tSEK 63,559 (65,442) and decreased by -2.9% (+12.9%). Currency-adjusted net sales growth amounted to -0.6% (10.5%).Operating profit amounted ...

Sleeping and waking up at different times is associated with an increased risk of heart attack and stroke, even for people who get the recommended amount of sleep, according to new research.

Think blue light is hurting your sleep cycle? A new study suggests it can actually improve the overall sleep quality of older adults — but only if they time it right.

We still follow the same sleep-wake cycle based on light, just as our ancestors did. Humans can see well in bright light but very poorly in dim light.

In general, setting aside enough time to sleep is the best way to ensure your brain reaches deeper stages — and depending on deficits, it may spend more time in REM or deep sleep as it cycles ...

Can’t sleep, can’t focus, can’t thrive? ADHD and insomnia may be a vicious cycle Date: July 16, 2025 Source: University of Southampton Summary: Struggling to sleep might be the hidden reason ...