14 Dec 2025
#Sleep5
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.
Photo by Toya Beauty, Unsplash
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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