"Nighttime Artificial Light Linked to Higher Heart Disease Risk, Study Finds"

A study set to be presented at the American Heart Association reveals that increased nighttime artificial light correlates with heightened stress in the brain and a greater risk of cardiovascular disease.

• The preliminary study, to be showcased at the American Heart Associations Scientific Sessions 2025 in New Orleans, links higher levels of lighting at night to increased inflammation in blood vessels.
• Researchers found that exposure to light pollution raised stress-related activity in the brain, potentially leading to inflamed arteries and a higher likelihood of developing cardiovascular disease.
• Utilizing advanced imaging techniques such as positron emission tomography and CT scan, the study assessed the impact of nighttime lighting on arterial health and overall cardiovascular well-being.