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no they cant cos like when people sleep they baisically become unconcious so if they were standing up the would fall unconcious and fall down or if they were leaning on something they would slide down...

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Do horses lay down when they sleep?

Yes, horses do lay down to sleep, but it is less common for them to sleep in this position compared to standing up. Horses have a unique ability to sleep both standing up and laying down, and will choose their preferred position based on their level of comfort and sense of security in their environment.


Left to nature's devices most humans would sleep?

Yes, humans have a natural biological rhythm called the circadian rhythm that regulates our sleep-wake cycle. In the absence of artificial light and modern distractions, most people would naturally sleep during the night and be awake during the day in accordance with their circadian rhythm.


Why when im sleeping sometimes you cant move or open your eyes?

When you can not move or talk when you wake up from a dream is that you have a demon may be holding you down or sitting on top on your chest watching you sleep. When they do that and your sleeping and you can't move is because while your sleeping they are actually talking to you evil things that make you dream crazy things and when you wake up you just feel some feeling really negative and you just can't move but the best thing to do is pray before you go to sleep and when you wake up with that problem when you can't talk or move pray in your mind because they can't hear what you have in your mind but god do


What is lack of sleep?

Lack of sleep is where you do not sleep as long as you normally do. For instance if you went to sleep at 9pm and woke up at 7:30am , then started going to sleep at 3am and waking up at 8am. Lack of sleep is not good at all, you may think its fun but really it is affecting your health and hurting your brain.


What causes people to wake up irregularly in the night?

Sleep apnea is a common cause. You can't breathe, so your brain wakes you up to correct the problem. Alcohol can be a cause. It depresses the brain and puts you to sleep, but when it wears off it has messed up your normal sleep cycle. Urinary blockage can be a cause, especially in older men. They can't empty their bladders before going to bed, so they have to get up in the middle of the night. General stress and anxiety can wake you up, too. You brain is thinking about stuff all night, so you wake up to worry about it some more.