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Night Owls Face 79% Higher Heart Health Risks

1/28/2026

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Summary

Story summary

A study in the Journal of the American Heart Association used UK Biobank data from 300,000+ adults and found that night owls, especially women, have 79% higher prevalence of poor cardiovascular health and 16% higher risk of heart attack or stroke over 14 years.
The study attributes these risks to unhealthy lifestyle choices, including smoking and poor diet.
Experts say night owls can improve heart health with healthier habits.

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Story summary

A study in the Journal of the American Heart Association used UK Biobank data from 300,000+ adults and found that night owls, especially women, have 79% higher prevalence of poor cardiovascular health and 16% higher risk of heart attack or stroke over 14 years.
The study attributes these risks to unhealthy lifestyle choices, including smoking and poor diet.
Experts say night owls can improve heart health with healthier habits.