TIL "pruney fingers" are not caused by your skin swelling from absorbing water. They're actually caused by your nervous system constricting the blood vessels in the skin, causing them to shrink and the skin to fold over them. bbc.com Submitted by OverdriverJC t3_10y6pwt on February 9, 2023 at 9:26 PM in todayilearned 59 comments 604