![]() You might eat more because you’re hungrier.Įnergy levels. That means you won’t be able to use glucose, or sugar, as well. Studies show a lack of it can lower your insulin sensitivity. Deep sleep seems to be important for glucose regulation in adults. Experts think that’s so your body gets a chance to recover from the day. If you’re a kid, deep sleep will send out growth hormone to help your bones grow. That helps your body repair muscle and other tissue. Your pituitary gland sends out human growth hormone. It’s normal to see a 10%-20% dip.īone and muscle. Your heart rate slows, and you breathe at a slow and steady pace. ![]() That’s sometimes called your “rest and digest” network. Your parasympathetic nervous system kicks in. It’s also a cue from your internal body clock, or circadian rhythm, that it’s time to sleep.īlood pressure and heart rate. One theory is that this helps you conserve and restore energy. Here’s what happens during slow-wave sleep: Your body processes change depending on what stage of sleep you’re in. You’ll get most of it in the first half of the night. It’s also called N3 or slow-wave sleep (SWS). Your deepest sleep happens in stage 3 of NREM. You have two kinds of sleep: rapid eye movement (REM) and non-rapid eye movement (NREM). A lack of restorative sleep raises your chances of infections, thinking and memory problems, and other health issues. Your breathing and heart rate go down, but your ability to fight germs and to form memories goes up.Įxperts are still figuring out exactly what deep sleep is for. But while you may be out like a light, some parts of your body are hard at work. It’s important to get enough sleep so that all of the different stages of sleep can work together to keep you healthy.During deep sleep, you pay less attention to the outside world. The stages don’t always happen in the same order or for the same amount of time. You move through all of these stages several times during sleep. You may or may not remember dreaming during REM stages, but everyone dreams. The last REM period is about 30 to 60 minutes.The third REM period lasts about 15 minutes.The second REM period lasts about 10 minutes.The first REM period may only last 5 minutes.typically, only your breathing and eye muscles moveįor most people, REM sleep happens every 90 minutes throughout the night.you lose muscle tone (the tightness or stiffness of your muscles) and muscle power.your eyes move very fast (which gives REM sleep its name).REM sleep is also called the dream stage. This helps your body restore and recover. Your body also releases important hormones that control growth and healing. During this stage, you may have some body movements. This deeper stage of NREM may help your body recover. During this stage, your muscles become more relaxed. Stage N2 lasts about 30 to 60 minutes.It involves light sleep from which you can be awakened easily. It is very short, usually less than 10 minutes. Stage N1 happens right after you fall asleep. ![]() ![]() Knowing about the stages of sleep can help you understand what healthy sleep looks like. Some sleep disorders happen during or are worse during one or more stages of sleep. There are over 80 types of sleep disorders. Many people will deal with a sleeping problem at some point in their life. ![]()
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