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A popular research suggests that wrinkly fingers are a reaction of our nervous system. When our fingers are in water for a long time, our nervous system causes the blood vessels present in the deeper layers of our skin to constrict. This in turn causes the deeper layers to shrink or contract. But as the topmost layer does not shrink, it becomes loose thus, forming small folds or wrinkles.
Do you know why this happens?
Scientists suggest that this could be an evolutionary adaptation. Wrinkly fingers help in getting a better grip to pick up wet objects, preventing them from slipping from our hands. Even our feet get wrinkly, helping us to walk in water without slipping.
