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Easiest answer, no humans can't sleep upside down for extended periods of time. Hanging upside down can cause blood clots, especially in the brain. We are designed as upright, bi-pedal animals. Gravity plays a significant role in blood being pumped to our extremities. Also gravity helps remove the blood from the brain and return it to the heart. A person can go for extended periods of time in low or zero gravity, however they are specially trained, and wear special g-suits. The effects of near zero gravity have not been studied in depth. However what we do know is that extended times in near zero gravity can cause very serious problems,including but not limited to, muscle wasting, circulation problems, blood clots, and cardiovascular problems. Several people have tried stunts involving hanging upside down for extended periods but they were examined by doctors every hour, while standing up!
Wiki User
∙ 12y ago
Wiki User
∙ 12y agoNo dolphins do not because they are mammels and they need to breath so they have to keep near the top of the ocean to get air in order to surivive they just stay normally how they are.
Wiki User
∙ 10y agoWiki User
∙ 13y agono because the gravity pulls them down
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Yes
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Do kangaroos sleep upside down?
No they do not sleep upside down.
Do mystery snails sleep upside down?
A Healthy snail doesn't flip upside down to sleep usually. so A unhealthy snail would sleep upside down.
Why do fruit bats sleep up side down?
fruit bats sleep upside down because all bats sleep upside down and a fruit bat is a bat
Why bats sleep hanging upside-down?
Bats sleep hanging upside-down because it will directly fly when it wakes up!
Does the pray mantis sleep upside down?
No it is not normal for a praying mantis to hang upside down
What animals sleep in an interesting way?
horses sleep standing up bats sleep upside down dolphins always keep one eye open according to the Sleep Foundation, a particular kind of baboon sleeps on its heels on top of a tree
What position do bats sleep in?
upside down
Do sloth sleep upside down?
check your answer
Do monkeys sleep upside down?
No, monkeys do not sleep upside down. Monkeys make beds out of leaves, high up in the limbs of tall trees.
Do manatees sleep upside down?
no thay sleep on there belly
How do dolphins pretend they are dead?
turn upside down and stay still
Can you sleep upside down?
I will do an experiment with myself tonight. My PURPOSE is to learn if people can actually sleep upside down. REASON: I want to figure out if people can really sleep upside down.hypothesis: I bet people can sleep upside down peacefully.experiment: I will sleep upside down tonight and come back tomorrow and type what happened.
