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nedrith t1_ixwpod1 wrote

Reply to comment by shteepadatea in ELI5: How are bats able to hang upside down for a long periods of time without blood pooling to their heads? by Hopeful_Anything_257

Actually it is! https://science.howstuffworks.com/innovation/science-questions/hang-upside-down-how-long-safe-deadly.htm.

We evolved to stop things like blood pooling in our feet.

Granted you'd have to be upside down for a really long period of time to die from it, but bad things can happen in shorter periods of time.

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