During sleep, your muscles relax, your breathing slows, and your heart rate decreases.
Sleep is your body's way of resting after a day of thinking and moving. If you miss a night's sleep, your reactions will slow and you'll feel pretty cranky. Your brain doesn't turn off completely when you sleep, which is why you dream.
Scientists aren't sure if dreams have a purpose, or they're just the mind's way of blowing off steam. Either way, they're pretty weird and cool. try writing your dreams down after you have them, so you won't forget!
Sleep is your body's way of resting after a day of thinking and moving. If you miss a night's sleep, your reactions will slow and you'll feel pretty cranky. Your brain doesn't turn off completely when you sleep, which is why you dream.
Scientists aren't sure if dreams have a purpose, or they're just the mind's way of blowing off steam. Either way, they're pretty weird and cool. try writing your dreams down after you have them, so you won't forget!
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