Light sleep is the beginning of your sleep cycle and your body's way of winding down. Breathing, heart rate and muscle changes prepare your body for the deeper sleep to come. Light sleep is broken ...

Regularly sleeping less than you need can harm your health and safety. Most adults do best with 7 to 9 hours per night. Getting at least 7 hours of sleep may support weight management by affecting ...

Better sleep supports your overall health, while poor sleep can harm mood, thinking, heart health, immunity, and raise obesity and diabetes risk. Improve your circadian rhythm by getting bright light ...