Tag

Circadian rhythm

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A woman stretching her arms as she wakes up in bed

Social jet lag tied to 30% more heart disease

A Journal of Internal Medicine study tracked sleep timing in 51,562 UK adults and found those whose weekend sleep shifted two hours or more had 30% higher heart disease risk, whatever their sleep duration.

Jul 26, 2026

A man lying on his back in bed in a dark room at night

News

A regular sleep schedule tracked with lower dementia risk

A week of wrist-monitor sleep in 82,391 UK adults showed that those with the most regular schedules were less likely to develop dementia, and a steady rhythm seemed to offset sleeping too little. It shows a link, not proof.

Jul 21, 2026