Don't lose sleep over headlines linking melatonin to heart failure. That's the message after some scary-sounding reports about a preliminary study involving the sleep-related supplement. It raised questions about the safety ...
Nov 8, 2025
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Maintaining a bedroom temperature of 24°C (75°F) at night while sleeping reduces stress responses in older adults, according to new Griffith University research published in the journal BMC Medicine.
Jan 7, 2026
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People who sleep poorly are more likely than others to have brains that appear older than they actually are. This is according to a comprehensive brain imaging study from Karolinska Institutet, published in the journal eBioMedicine. ...
Sep 30, 2025
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Pink noise—often used to promote sleep—may reduce restorative REM sleep and interfere with sleep recovery. In contrast, earplugs were found to be significantly more effective in protecting sleep against traffic noise, according ...
Feb 2, 2026
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St. Hedwig Hospital and Charité–Universitätsmedizin Berlin researchers report that repeated mornings spent under dim indoor light in healthy young adults raised afternoon and evening cortisol and reshaped sleep in ways known ...
The brain has its own waste disposal system—known as the glymphatic system—that's thought to be more active when we sleep.
Sep 6, 2025
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Each morning, your brain embarks on a remarkable series of events: it transitions from being asleep, potentially in an alternate reality, to waking up. Within a short time, you regain waking consciousness, reorient yourself ...
Jul 18, 2025
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Australian researchers have found compelling evidence that insomnia may be linked to disruptions in the brain's natural 24-hour rhythm of mental activity, shedding light on why some people struggle to "switch off" at night.
Nov 26, 2025
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Every spring, Americans dutifully adjust their clocks forward to daylight saving time, and every fall, back to standard time—but no one seems very happy about it. The biannual time shift is not only inconvenient, it's also ...
Sep 15, 2025
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New research from The University of Texas at Austin suggests that exercising more frequently—ideally every day—could improve sleep quality, particularly the kind of deep, restorative sleep that supports better mood and mental ...
Jul 14, 2025
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