While sleeping in darkness may seem obvious, research shows that even small amounts of light, such as the glow from your phone screen or a nightlight, can disrupt the body’s internal clock, suppress melatonin, and interfere with deep sleep. Over time, this may increase the risk of developing chronic diseases such as obesity, diabetes, depression, and cardiovascular disease.
Sleep is not merely a passive act of unconsciousness; it is an active process of repair and recalibration.
