US EditionNew study warns night owls have higher heart risk
Night owls have a 79% higher rate of poor cardiovascular health and a 16% increased risk of heart attack or stroke, linked to modifiable behaviors and circadian misalignment.
- On January 28, 2026, researchers at Brigham and Women's Hospital and Harvard Medical School reported that evening chronotypes had a 79% higher likelihood of poor cardiovascular health, tracking over 300,000 adults in the UK Biobank.
- Because of circadian misalignment, evening chronotypes face added heart risk linked to lifestyle factors like nicotine use, insufficient sleep, and barriers to healthy eating, Sina Kianersi said.
- Using the AHA Life's Essential 8, researchers found about 8% classified as definitely evening people and night owls had a 16% greater risk of first heart attack or stroke over a median follow-up of about 14 years.
- Women showed a stronger link between evening preference and heart health, and targeted programs for night owls could help, with Sina Kianersi noting `The challenge is the mismatch between your internal clock and typical daily schedules that makes it harder to follow heart-healthy behaviours`.
- Given study limitations, chronotype was self-reported once and the UK Biobank sample was mostly white and healthier, but improving sleep, diet and smoking offers public-health opportunities.
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66 Articles
Stroke and heart attack warning as night owls 79 per cent more likely to have poor heart health
Individuals who prefer burning the midnight oil face substantially elevated risks of cardiovascular problems, according to fresh research published in the Journal of the American Heart Association.The study, which examined data from nearly 323,000 British adults, revealed self-described night owls demonstrated a 79 per cent higher prevalence of poor heart health compared with those maintaining intermediate sleep schedules.Furthermore, these late…
Observador
IOL PortugalThe study concluded that, in comparison with intermediate chronics, people "vespertine" or nighttime showed a prevalence of 79% higher than a general lack of cardiovascular health score.
According to a study, night owls often live unscathed. The good news: some things can be changed - even without going to bed earlier.
Research highlights the importance of circadian rhythm, the biological clock that regulates various body processes such as blood pressure and metabolism
Being a night owl may increase the risk of cardiovascular disease
People who consistently go to bed late at night and are active late in the day have a higher risk of stroke and heart attack than early risers, new research from the American Heart Association shows.
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