Turn off all lights when sleeping

Research suggests that 'shortened sleep duration' is a key factor. 'Light' is an important basis for our brain to set its 'biological clock.' Continuous light stimulation at night suppresses melatonin and interferes with sleep, preventing nerves from relaxing. It also disrupts the balance of blood pressure, hormones, metabolism, etc., thereby increasing the risk of cardiovascular and cerebrovascular diseases. What if you're afraid of the dark? You can leave a comforting, faint light source in the room, but wear a comfortable, well-blackout 'eye mask.' Alternatively, dim the night light or place it in a lower position to avoid direct light shining into your eyes. If there are streetlights outside the window, use 'blackout curtains.' For those who need to use the restroom at night, the elderly, or those prone to falls, a low-positioned, dim guide light can be kept on to clearly illuminate the path.