REM sleep behavior disorder and Parkinson's: an early sign
What REM sleep behavior disorder and Parkinson's have in common: a 1,280-patient study, and new research on how the brain responds to the heartbeat.
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Can You Catch Up on Sleep on Weekends? What Studies Show
Can you catch up on sleep on weekends? See what a randomized trial and two large studies found about weekend recovery sleep, and its limits.
Creatine without exercise: does it build muscle?
Does creatine work without exercise? A 12-week trial in 64 adults aged 45 to 65 found gains in lean mass and strength, but exercise still did more.
Does Sweating Burn Fat? What the Evidence Says
Does sweating burn fat? Learn why the amount you sweat doesn't measure fat burned, what sweat is made of, and where lost fat actually goes.
Does tea block iron absorption? Why timing matters
Does tea block iron absorption? See what a trial in 12 women found about tea with a meal versus an hour later, and what long-term studies suggest.
Detox drinks myth: do they really flush out toxins?
Detox drinks myth: do they really flush toxins out of your body? See what the research says about cleansing, weight loss and safety risks.
How Long Does the ISS Take to Orbit Earth? About 90 Minutes
How long does the ISS take to orbit Earth? About 90 to 92 minutes, so its crew sees 16 sunrises a day. Learn why, how fast it goes and how high.
Insomnia and stroke risk: what a large new review found
Insomnia and stroke risk: a review of over 1.3 million people linked insomnia to a 26% higher stroke risk vs. those without it. What that means.
AI That Makes Decisions but Can't Chat: Meet Jev
Jev is an AI that makes decisions instead of writing text, built by a former OpenAI researcher. Learn how it works and what independent tests found.
Does caffeine affect sleep quality if you fall asleep fast?
Does caffeine affect sleep quality even if you fall asleep fast? What a review of 32 studies recording the sleeping brain found about deep sleep.
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