Question

why do our fingers shrink in water​

Answer 1

Answer:

Pruney fingers and toes are actually caused when blood vessels just below the skin shrink — a process called vasoconstriction. When your nervous system is functioning properly, soaking in water sends a message through the nerves telling those blood vessels to shrink.

Answer 2

Laboratory tests confirmed a theory that wrinkly fingers improve our grip on wet or submerged objects, working to channel away the water like the rain treads in car tires. ... In fact, the distinctive wrinkling is caused by blood vessels constricting below the skin.

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