Why Do Your Hands Wrinkle In Water?
When you are swimming or sitting in the bathtub for an extended period of time you may notice your hands and feet start to wrinkle. Some people say their hands are “turning into raisins” when this happens.
This change in the texture of your hands is an evolutionary response that humans have that serves to improve your grip. The ridges that are created in your skin can improve your body’s ability to hold or grip things while submerged in water.