Circadian rhythm, ______ helps your body know when to sleep and when to be awake., Melatonin, The hormone ________ is released at night to make you feel sleepy., Sleep deprivation, can make it hard to concentrate and affect your mood., REM sleep, During ______ , your brain is very active, and you often dream., Homeostasis, Your body maintains ______ to keep energy levels and temperature stable while you sleep., Sleep inertia, is the groggy feeling you get right after waking up., Deep sleep, is the stage when your body repairs tissues and strengthens the immune system., Sleep hygiene, Good _______, like keeping a regular bedtime, improves sleep quality., Chronotype, Your ______ determines if you are a morning person or a night owl., Microsleep, happens when you briefly fall asleep for a few seconds without realizing it..

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