14 May 2026
#Sleep11
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.
Photo by Bhautik Patel, Unsplash
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.
31 Mar 2026
26 Mar 2026
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.
18 Dec 2025
14 Dec 2025
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.
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.
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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