why do people need to take a sleep ?why do we feel tired after a sleep without dreams?why dream is so important?
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Answer:
If you often wake up from a bad dream feeling like you slept ... Whether you remember them or not, dreams are a normal part ... Does Good Sleep Equal Happy Dreams?
Sleep is an essential function1 that allows your body and mind to recharge, leaving you refreshed and alert when you wake up. Healthy sleep also helps the body remain healthy and stave off diseases. Without enough sleep, the brain cannot function properly.
It's called 'paradoxical sleep' because it is not the part of sleep which provides us with rest. During the dream phase of sleep (REM), we actually have more of the 'stress hormones' such as adrenaline in our systems. So over-dreaming stresses the system leaving us exhausted when we awaken.
Whether you remember them or not, dreams are a normal part of sleep. Everyone dreams for a total of about two hours per night, and dreams can occur during any stage of sleep, although they’re most vivid during the REM phase. If you’ve ever woken up from a happy dream feeling relaxed and rested—or a scary one feeling on edge—you might have wondered whether the content of your shut-eye reveries can make a difference in your overall sleep quality. Here’s what’s really going on: