Sleep: sleeping in a lit room may increase stroke risk according to experts

A study published in JAMA Network Open indicates that sleeping with a light source increases the risk of heart failure, heart attacks, or strokes by up to 56%. Researchers analyzed nearly 89,000 adults over nine years, showing that nighttime light disrupts sleep and affects cardiovascular health. Stress mechanisms, such as cortisol production, remain active, keeping the body in a state of alert.