Without this natural waterproofing, the palms and soles are more prone to absorb water.
The skin on the palms of our hands and soles of our feet is hairless - and it is this lack of hair that causes our hands and feet to go wrinkly after a soak in the bathtub. In other areas of the body, sebaceous glands which are attached to hair shafts produce oils that help to waterproof the skin.
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