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
momolamomo t1_j7y5a43 wrote on February 10, 2023 at 5:56 AM To increase fingertip friction in the slippery environment. Your heart slows down too when you enter water as a survival mechanism Permalink 6
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