Suboptimal Sleep Duration Linked to Accelerated Biological Aging

Sleeping fewer than 6.4 hours or more than 7.8 hours per night may accelerate biological aging and increase the risk of chronic diseases, according to a study analyzing data from approximately 500,000 individuals. Researchers found that participants who maintained a sleep duration between 6.4 and 7.8 hours exhibited slower biological aging markers and overall better health outcomes. Those falling outside this optimal window showed a higher predisposition to accelerated aging and a greater susceptibility to systemic health decline. Insufficient sleep was specifically linked to an increased prevalence of depression, anxiety disorders, type 2 diabetes, hypertension, and cardiovascular diseases. The study notes that sleep disturbances may not always be the primary causes of illness but can serve as early indicators of underlying health problems.