Sleep Sleeping Girl, Domenico Fetti, c. 1615 Sleep is a state of reduced mental and physical activity in which consciousness is altered and certain sensory activity is inhibited. During sleep, there is a marked decrease in muscle activity and interactions with the surrounding environment.
Learn about the functions, benefits and stages of sleep, and how much sleep you need at different ages. Find out how to improve your sleep quality and what to do if you have sleep problems or disorders.
About Sleep Key points Good sleep is essential for our health and emotional well-being. Getting enough sleep and good sleep quality are essential for healthy sleep. The amount of sleep you need changes as you age. Talk to your healthcare provider if you have problems sleeping.
We tend to think of sleep as a time when the mind and body shut down. However, sleep involves many important and necessary processes.
Sleep is an important part of your daily routine—you spend about one-third of your time doing it. Quality sleep—and getting enough of it at the right times—is as essential to survival as food and water. Without sleep, you can’t form or maintain the pathways in your brain that let you learn and create new memories. Lack of sleep makes it harder to concentrate and respond quickly. Sleep …
SLEEP is the official journal of the Sleep Research Society (SRS). Publishes content on sleep, sleep medicine and circadian research.
Learn about the different types of sleep, the genes and processes that regulate sleep, and the health benefits and risks of sleep. Johns Hopkins sleep expert Mark Wu, M.D., Ph.D., explains the latest research on the science of sleep.
Find out what can help you fall asleep faster and sleep better, including using sleep hygiene to improve sleep.
Sleep What happens during sleep – and how to improve it Sleep impacts nearly every part of your health, from brain function to immune strength. Learn what happens in each phase of sleep, how to manage common disruptions, and simple ways to improve sleep hygiene.
Here’s why sleep matters so much – plus how to fall asleep faster and stay asleep longer.