eli5: How can bats hang upside down without all the blood rushing to their head?

Question

eli5: How can bats hang upside down without all the blood rushing to their head?

In: 15

Answer 1

Why can you stand up with out all the blood rushing to your feet?

Answer 2

bats are much smaller than humans, so the dynamics of having 5+feet of head pressure on our brains is relatively significant.

A bat is only maybe a foot long head to foot, its much less of an issue.