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Heart impact of sleeping with TV on
A recent study shows that exposure to artificial light at night—including light from the television and outdoor lights—is linked to changes in the structure and function of the heart. Participants experienced an increase in left ventricular mass and thickening of the heart walls, along with a decline in its functional indicators. These changes suggest that the heart is undergoing remodeling, and it is believed that disruption of the biological clock caused by nighttime light reduces sleep quality and raises the risk of heart disease. The study also indicated that reduced sleep duration explains part of this relationship. Recommendations include minimizing exposure to light during the night, using timers to turn off the television, turning off unnecessary lights, and reducing screen time before bed to improve heart health and sleep quality.
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