Darken Your Night to Protect Your Heart
TL;DR
New research presented at the American Heart Association's 2025 Scientific Sessions links higher nighttime exposure to artificial light with increased brain activity related to stress, arterial inflammation, and a higher long-term risk of cardiovascular events. The mechanism goes beyond melatonin suppression, as nighttime light activates the body's fight-or-flight system, potentially harming heart health over time. Practical tips include darkening bedrooms, using warm evening lighting, imposing a digital curfew on devices, and minimizing outdoor light to protect circadian rhythm and cardiovascular health.
Topics:health#arterial-inflammation#artificial-light-at-night#cardiovascular-risk#circadian-rhythm#health#stress-response
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