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Insomnia Research News

October 3, 2025

Top Headlines

 

New research shows that poor sleep could make the brain appear years older than it really is. Using MRI scans and machine learning, scientists found a clear link between unhealthy sleep patterns and accelerated brain ...
New studies show that a bacterial molecule, peptidoglycan, is present in the brain and fluctuates with sleep patterns. This challenges the idea that sleep is solely brain-driven, instead suggesting it’s a collaborative process between our bodies ...
Switching clocks twice a year disrupts circadian rhythms in ways that harm health. Stanford scientists found permanent standard time would reduce obesity and stroke rates nationwide, making it the ...
Chronic insomnia may do more than leave you groggy, it could speed up brain aging. A large Mayo Clinic study found that people with long-term sleep troubles were 40% more likely to develop dementia or cognitive impairment, with brain scans showing ...
UC Berkeley researchers mapped the brain circuits that control growth hormone during sleep, uncovering a feedback system where sleep fuels hormone release, and the hormone regulates wakefulness. The discovery helps explain links between poor sleep, ...
Scientists discovered seven molecules in the blood linked to excessive daytime sleepiness, a condition that affects one in three Americans and raises the risk of heart disease, obesity, and diabetes. The study highlights the role of both diet and ...
Overactivation of dopamine neurons may directly drive their death, explaining why movement-controlling brain cells degenerate in Parkinson’s. Mice with chronically stimulated neurons showed the same selective damage seen in patients, along with ...
A long-term study following insomnia patients treated with cannabis-based medical products revealed sustained improvements in sleep quality, mood, and pain management over 18 months. Most participants reported better rest and less anxiety or ...
Ozempic’s weight loss benefits might come at the cost of muscle strength, even if muscle size remains relatively stable. This raises significant concerns for older adults, who are already at risk ...
Neuroscientist Dr. Randy J. Nelson explores how artificial light at night disrupts our bodies, from immune health to mood. His work bridges lab research, clinical trials, and everyday solutions while mentoring future ...
Yoga, Tai Chi, walking, and jogging may be some of the best natural remedies for improving sleep and tackling insomnia, according to a large analysis comparing various treatments. While cognitive behavioral therapy (CBT) remains effective, ...
Struggling to sleep might be the hidden reason why adults with ADHD traits often feel less satisfied with life. New research reveals a strong link between insomnia and reduced well-being in people ...

Latest Headlines

updated 11:29am EDT

Earlier Headlines

 

Tokyo residents face a trade-off between home size and commute time when it comes to sleep health. A new study shows longer commutes increase both insomnia and daytime sleepiness, while smaller ...

Even a few nights with insufficient sleep promote molecular mechanisms linked to a greater risk of heart problems. This has been shown in a new study in which the researchers investigated how sleep ...

Muscle cells contain their own circadian clocks and disrupting them with shift work can have a profound impact on aging, according to new ...

The molecular mechanism behind why heart attacks can vary in severity depending on the time of day has been uncovered, potentially paving the way for innovative treatments that align with the natural ...

Adolescents who sleep for longer -- and from an earlier bedtime -- than their peers tend to have improved brain function and perform better at cognitive tests, researchers have shown. But the study ...

A new study suggests that early-life exposure to two widespread environmental pollutants -- small particle air pollution and outdoor artificial light at night -- could increase the risk of pediatric ...

For adults over the age of 65, higher levels of both insomnia symptoms and sleep medication use were associated with higher risk of disability a year later, according to a new ...

Focal cortical dysplasia (FCD) type 2 is a congenital malformation of the cerebral cortex that is often associated with difficult-to-treat epilepsy. In the affected areas, nerve cells and their layer ...

New research has uncovered how a simple circadian clock network demonstrates advanced noise-filtering capabilities, enhancing our understanding of how biological circuits maintain accuracy in dynamic ...

Healthy sleep includes multiple components, such as number of hours of sleep per night, how long it takes to fall asleep, daytime functioning and self-reported sleep satisfaction, and addressing ...

A new study suggests that perceived stress and depression factor into the relationship between insomnia and hazardous drinking -- perhaps not a surprise. But because the relationship between insomnia ...

Researchers identified a direct connection between cancer-related inflammation and the loss of motivation characteristic of advanced cancer. In a mouse study, they describe a brain pathway that ...

A new study found that people with cannabis use disorder (CUD) had elevated dopamine levels in a brain region associated with ...

Wear and tear on plastic products releases small to nearly invisible plastic particles, which could impact people's health when consumed or inhaled. To make these particles biodegradable, ...

Numerous studies have shown that working the night shift is associated with serious health risks, including to the heart. However, a new study suggests that eating only during the daytime could help ...

Retired adults who habitually exercised outperformed sedentary adults in physical and cognitive ...

Patients prescribed medicinal cannabis in Australia maintained improvements in overall health-related quality of life (HRQL), fatigue, and sleep disturbance across a one-year period, according to a ...

Scientists have confirmed a neurobiochemical link between dopamine and cognitive flexibility. PET imaging shows that the brain increases dopamine production when completing cognitively demanding ...

Why do some people lose the joy of eating, even when surrounded by irresistible foods? UC Berkeley researchers have uncovered a surprising brain mechanism that explains this paradox. They found that ...

For women in their 80s, experiencing increasing sleepiness during the day over a five-year period is associated with double the risk of developing dementia during that time, according to a new study. ...

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