US EditionStudy suggests bright lights at night raises heart attack and stroke risk
A study of 466 Americans over 10 years found that increased nighttime artificial light exposure raises brain stress and arterial inflammation, boosting heart disease risk by up to 35%.
- Researchers found that higher nighttime artificial light exposure measured inside participants' homes was linked to increased brain stress activity and inflamed arteries, raising major cardiac event risk.
- Using combined Positron Emission Tomography/Computer Tomography scan, researchers measured brain stress response as a proposed causal pathway linking artificial nighttime light to heart disease.
- In a 10-year study, 466 healthy Americans showed a 22 to 35 percent increased risk of heart disease with higher nighttime light exposure.
- Abohashem recommended limiting indoor nighttime light, keeping bedrooms dark and avoiding screens before bed, while researchers urged cities to reduce outdoor lighting or install motion-activated streetlights.
- Presented at the American Heart Association, this first-of-its-kind analysis linking nighttime light pollution to heart disease is preliminary and requires peer-reviewed publication for validation.
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35 Articles
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Your bedroom glow might be quietly damaging your heart
Boston researchers linked nighttime light exposure to greater stress-related brain activity and inflamed arteries, signaling a higher risk of heart disease. The study suggests that artificial light at night disrupts normal stress responses, leading to chronic inflammation. Experts call for reducing unnecessary light in cities and homes to protect cardiovascular health.
Sleeping With Lights On May Raise Risk of Heart Failure and Stroke, Major Medical Study Warns
Asian woman play smartphone in the bed at night,Thailand people A large-scale study found that exposure to light during sleep increases risks of heart failure, stroke, and artery disease by over 50%. A major study published this week found that exposure to even moderate levels of light during sleep is associated with significantly increased risks of heart failure (up to 56%), stroke (28%) and other cardiovascular diseases (32%). Researchers anal…
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