Night Light Exposure Linked to Higher Heart Risk, Study Finds
Exposure to light at night is linked to worse heart structure and higher cardiovascular risk, a new study finds.
Researchers tracked 73,286 adults and found those with high nighttime light exposure above 3 lux had a 29 percent higher risk of heart failure.
Stroke risk rose 33 percent, heart attack 24 percent, and cardiovascular death 26 percent. The study was published on September 9 in the European Heart Journal.
Shorter sleep explained 24 to 49 percent of the effect. The team was led by Jin Dai of Tulane University.
The findings held after adjusting for other risk factors. Doctors say keeping bedrooms dark is a simple step.
The study was observational and cannot prove cause. Medscape covered the findings this month.
The study followed 73,286 adults and was published September 9 in the European Heart Journal. High exposure above 3 lux was tied to 29 percent higher heart failure risk. Shorter sleep explained 24 to 49 percent of the link. The team was led by Jin Dai of Tulane. Doctors say dark bedrooms are a simple step.
Khabar 24h Editorial Desk — our explainers are prepared by the Khabar 24h editorial team using AI-assisted research tools, and every piece is reviewed by a human editor before publishing. We do not claim original reporting: our work is turning complex topics into simple, accurate summaries. Spotted an error? Write to contact@khabar24h.com — our corrections policy aims for same-day review.
More from this author →
Leave a Reply