Cerner April Newsletter- Stages of Sleep
Sleep is incredibly complex and has an impact on virtually all systems of the body. Within a minute after falling asleep, notable changes start to affect both your brain and body. All of these changes that happen during sleep are connected with your physical, emotional, and mental health. You should get 7-9 hours of sleep each night to allow your body to properly cycle through the 4 stages of sleep: Stage 1 (shallow sleep): Your muscles start to relax, and your breathing slows. It is easy to wake up during this stage of sleep, and it lasts 1-5 minutes. Stage 2 (light sleep): Your breathing and heart rate continue to slow down. You spend the most time in stage 2 sleep throughout the night. This stage of sleep lasts 10-60 minutes. Stage 3 (deep sleep): Deep sleep is required to feel rested. You spend more time in stage 3 earlier in the night. This stage of sleep lasts 20-40 minutes. Stage 4 (Rapid Eye Movement/REM sleep): This stage is associated with heightened brain activity, quick eye...