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 …

Feb 25, 2025 · The hypothalamus, a peanut-sized structure deep inside the brain, contains groups of nerve cells that act as control centers affecting sleep and wakefulness. Within the hypothalamus is …

May 15, 2024 · 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 …

Jun 1, 2025 · 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 …

Dec 9, 2025 · Sleep is a natural process that helps your body restore energy, supports learning and memory, and keeps you healthy. During sleep, your brain cycles through different stages of non …

5 days ago · Working this overlooked practice into your sleep routine could have real benefits for your health.

Jan 31, 2025 · Consider simple tips for better sleep, from setting a sleep schedule to including physical activity in your daily routine. Many factors can interfere with a good night's sleep — from work stress …

Jul 22, 2025 · Sleep is a complex biological process made up of several stages that cycle throughout the night. These stages include rapid eye movement (REM) sleep and non-REM sleep, each of which …

Throughout your time asleep, your brain will cycle repeatedly through two different types of sleep: REM (rapid-eye movement) sleep and non-REM sleep. The first part of the cycle is non-REM sleep, which …

Nov 21, 2025 · Making changes to your diet and lifestyle may help improve your sleep quality. Certain supplements and natural remedies could also be beneficial. A good night’s sleep is just as important …