Your Toes Are Younger Than Your Head


Your Toes Are Younger Than Your Head

Unless, like a bat, you sleep upside-down, your toes are younger than your head.


Because, having spent more time slightly closer to the center of the earth, they have endured a slightly stronger gravitational field strength. This, in turn, due to relativistic time dilation, slows time down for your toes, relative to your head. With a slower passage of time during all periods when you were upright, less time has passed for them — and so they are younger.

Image credit: