#Sleep12

23 Jun 2026

Study: Common Sleep Habits Linked to Brain Aging

A large study found connections between everyday sleep habits and signs of brain aging. Researchers used questionnaires and brain MRI scans years later and identified three changeable sleep behaviors linked to more brain lesions.

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Photo by National Cancer Institute, Unsplash

26 May 2026

Sleep rhythms, brain cleaning and dementia risk

A new review by a University of Rochester neuroscientist explains how sleep helps clear waste from the brain. It suggests disrupted sleep rhythms may link stress, aging and other conditions to higher dementia risk.

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14 May 2026

How anesthesia changes the brain

A study examined brain activity under anesthesia and compared it with sleep and coma. Researchers found that anesthesia produces multiple brain states and say clinicians should monitor and tailor doses to reduce problems after surgery.

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30 Apr 2026

Vigorous exercise helps sleep in older adults with mild cognitive impairment

A small Texas A&M study used Oura Rings to track seven older adults with mild cognitive impairment for 14 days. Vigorous exercise gave the largest sleep benefit; light activity helped a little and moderate exercise showed no clear effect.

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31 Mar 2026

Rude customers can affect workers' sleep

A study shows that service workers often hide negative feelings during rude customer interactions. Small acts of quiet retaliation, called "service sabotage," can increase rumination and harm sleep and daily wellbeing.

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26 Mar 2026

How to get better sleep

Kimberly Fenn, a psychology professor, explains common misunderstandings about sleep and gives practical steps people can try. Her summary, published on Futurity, aims to improve public understanding and guide next steps.

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10 Mar 2026

Tired witnesses and suspects can give unreliable statements

New research from Iowa State University shows that tired, anxious or sleep‑deprived people in the justice system may give less accurate statements. The authors map how sleep loss changes memory and increase risks during interviews and custodial questioning.

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18 Dec 2025

Stress and Sleep: Why Rest Matters

Sleep affects health and daily life. Yale sleep specialist Christine Won explains how stress and sleep interact, outlines important sleep functions, and offers practical tips to improve rest.

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14 Dec 2025

Better sleep may protect children’s mental health

A large study found that poor sleep links economic hardship to later suicidal thoughts and attempts in children. Strong brain connectivity in the default mode network appeared to reduce some of these risks.

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14 Dec 2025

Untreated Sleep Apnea Speeds Heart Aging and Raises Death Risk

A laboratory study using a long-term mouse model finds that untreated obstructive sleep apnea — recreated by repeated drops in oxygen during sleep — leads to faster cardiovascular aging and higher mortality. Researchers call for early screening and treatment.

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9 Dec 2025

Dopamine helps lock in new skills during sleep

A study from the University of Michigan finds that dopamine neurons become active during NREM sleep soon after a person learns a movement. Their activity, together with sleep spindles, strengthens motor memories and improves skills after sleep.

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1 Dec 2025

Financial worries disrupt sleep in National Guard members

A study of full-time Army and Air National Guard members found that financial stress leads to tense bedtime habits and poorer sleep. Researchers measured stress, bedtime behaviours, and sleep using surveys and wrist actigraphs.

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