Wait, what does being in Deep Sleep Or REM sleep do?
Deep sleep focuses on your body. It is the most rejuvenating and restorative sleep stage, promoting muscle growth and repair as well as waste removal in your brain. In this stage, you have difficulty waking up and are disoriented or groggy if awoken.
REM sleep is essential to re-energizing your mind. REM is associated with dreaming, memory consolidation, learning, and problem solving. The time spent in this sleep stage usually decreases with age.
Without being able to spend the proper amount of time in these stages of sleep, you may have increased difficulties with: hunger pangs, feeling unfocused, more susceptible to colds, dark circles under the eyes, and many other chronic issues.