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Sleep disorders news
Cardiology
Sleep variability linked with sleep apnea and hypertension
Over 70 million Americans wear digital activity trackers (DATs) to record their sleep, steps and heart rate. A new study from Scripps Research found that these devices could also provide insight into even more, including ...
Dec 24, 2025
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Sleep duration, timing and quality: How smartphone data predict labor productivity
Researchers at University of Tsukuba examined the association between sleep characteristics and workplace productivity using real-world sleep data from approximately 80,000 users (spanning more than 2 million nights) of sleep-tracking ...
Dec 18, 2025
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Night waking impacts cognitive performance regardless of sleep duration
When it comes to sleep, traditional advice has focused on the number of hours a person sleeps. But for older adults, the quality of sleep may affect cognitive performance the following day regardless of their quantity of ...
Dec 18, 2025
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A newly discovered neural pathway links emotional stimuli to wakefulness
Researchers at University of Tsukuba have identified a previously uncharacterized neural circuit that directly links emotional processing to arousal. In the pathway, GABAergic neurons in the bed nucleus of the stria terminalis ...
Dec 18, 2025
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The 12 ways Christmas wrecks your sleep—and how to fix it
Christmas is supposed to be restful, yet somehow it ends up being one of the worst times of year for sleep. Between late nights, travel, one too many eggnogs and all that excitement, your sleep schedule doesn't stand a chance—and ...
Dec 18, 2025
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Autumn clock change linked to reduction in certain health conditions in England
The week after the autumn clock change is associated with a reduction in demand for NHS services for sleep disorders, cardiovascular disease, anxiety, depression, and psychiatric conditions in England, finds a study in the ...
Dec 17, 2025
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Cannabis use in chronic pain linked to more deep sleep but less REM sleep
The most frequently reported reasons for medicinal cannabis use are for pain relief and improvements in sleep. Although cannabis is believed to have an interconnected role with both pain and sleep, its effects on chronic ...
Dec 17, 2025
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Sex, but not race, influences obstructive sleep apnea diagnosis when applying the 4% versus 3% scoring rule
Obstructive sleep apnea (OSA) is a common sleep disorder in the U.S. affecting tens of millions, with estimates ranging from 25 to more than 80 million adults. However, most remain unaware they have the condition, which can ...
Dec 17, 2025
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Sleep problems and depression can be a vicious cycle, especially during pregnancy—it's important to get help
Imagine you got a rough night of sleep. Perhaps you went to bed too late, needed to wake up early or still felt tired when you woke up from what should have been a full night's sleep.
Dec 15, 2025
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Why do we wake up shortly before our alarm goes off? It's not by chance
You've probably experienced it—your alarm is set for 6:30 a.m., yet somehow your eyes snap open a few minutes before it goes off. There's no sound, no external cue, just the body somehow knowing it's time.
Dec 13, 2025
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Untreated sleep apnea tied to early heart aging and death
A new study published in npj Aging provides compelling evidence that untreated obstructive sleep apnea (OSA) accelerates cardiovascular aging and significantly increases the risk of premature death.
Dec 11, 2025
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How you eat may be connected to how you sleep
The average adult should get a minimum of seven hours of sleep daily, according to Centers for Disease Control and Prevention recommendations. However, an estimated 50 to 70 million Americans are diagnosed with a sleep disorder ...
Dec 11, 2025
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Anxiety and insomnia may lower natural killer cell count, potentially repressing immune function
Natural killer (NK) cells are the bodyguards of our immune system. As a first line of defense, they destroy invading pathogens, foreign bodies, and infected cells in early stages, thereby preventing them from spreading. NK ...
Dec 10, 2025
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How does sleep help rewind the body's clock?
A night-shift worker finishes at dawn. Their phone says Tuesday, but their body feels like it's Monday. The body's internal clock, or circadian rhythm, controls physiological processes such as sleeping, eating and physical ...
Dec 10, 2025
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Priming for depression in a dimly lit world
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 ...
Inconsistent sleep patterns in adolescents found to have widespread negative effects on the developing brain
Adolescents often sleep less than recommended and have substantially different sleep patterns on weekdays and weekends. Their mismatch in sleep timing between school and free days, known as social jet lag, has been linked ...
Dec 9, 2025
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Study maps out sleep challenges and solutions in China
A research team led by Professor Lu Lin from the Peking University (PKU) Sixth Hospital has recently provided a comprehensive overview of sleep health in China, identifying prevalent causes of sleep disturbance and suggesting ...
Dec 9, 2025
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Most people struggle to meet recommended sleep and physical activity targets: Getting rest is better, says study
Getting enough sleep and staying active are two of the most important things we can do for our health, but new research shows that most people struggle to achieve both, and that sleep may hold the key to moving more.
Dec 8, 2025
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Insufficient sleep associated with decreased life expectancy
A good night's sleep is more than a luxury: New research from Oregon Health & Science University suggests that insufficient sleep may shorten your life. The study is published in the journal SLEEP Advances.
Dec 8, 2025
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Rising temperatures linked to shorter, poorer sleep for US adults
Higher nighttime temperatures are linked to shorter sleep times and lower sleep quality, especially for people with chronic health conditions, lower socioeconomic status, or those living on the West Coast, according to a ...
Dec 5, 2025
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Good sleep starts in the gut
You might think good sleep happens in your brain, but restorative sleep actually begins much lower in the body: in the gut.
Dec 4, 2025
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Short and irregular weekday sleep disrupts glucose regulation even after weekend sleep recovery, study reveals
Researchers at the Yong Loo Lin School of Medicine, National University of Singapore (NUS Medicine), have found that insufficient weekday sleep significantly disrupts glucose metabolism even when weekend sleep is extended.
Dec 3, 2025
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Why undisturbed sleep is important to brain injury recovery
A new study highlights how important uninterrupted sleep is to recovery after a traumatic brain injury, finding that fragmented sleep in injured mice is linked to a loss of rapid-eye-movement (REM) sleep and increased fatigue.
Dec 2, 2025
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Losing sleep over money: Study reveals how financial stress follows workers to bed
Long before the alarm sounds, many Americans lose quality rest to the quiet worries that surface after dark—whether about bills, the next paycheck or job stability.
Dec 2, 2025
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