Today I have discovered why fingers wrinkle in the water. For the quick response, water has an oily substance that protects your skin. When this occurs, some type of dead skin cells absorb water which causes the cells swell, but the bottom layer does not work. Therefore, the swelling, combined with areas of the skin is connected to the layer below the non-inflated, causing the fingers to see all the wrinkles. Both the generic name for quick response. More technically, it is a waxy skin / fat secreted by the sebaceous glands called "sebum". In these glands, sebum is produced in special cells and these cells secrete then bursting.
This material among other benefits, has the dual effect helps the skin and hair to stay hydrated throughout, so it will not be allowed to dry and cracked, and at the same time help protect the skin from too much moisture from the outside. You have certainly noticed the hair of sebum at a certain point, if you go to a couple of days without washing it. The hair will start to feel very greasy when you run your hands through it. When you're in water for long periods of time, this sebum gets washed away from skin and hair, removing the protective layer.
Now you may wonder why only the tip of the fingers and toes wrinkled and not the rest of your body (or at least not as fast). The reason is not 100% understand, but we have a pretty good idea of what is happening here. Outermost layer of the skin, the epidermis, contains a protein called keratin. This protein helps strengthen the keratin cells also skin.Dead the surface layer of the skin called stratum corneum. So once all is lost protective sebum, keratin cells dead absorb water like a sponge and swell. This is why the skin is much easier to cut or break when it is flooded. The outer layer of dead keratin cells lose their hardness stronger when flooded.
The reason, while the toes and fingers wrinkle is that they contain a thicker layer of the living and the dead cells of keratin that the rest of his body. This leads them to grow stronger, then the rest of your skin, dead keratin cells absorb water. The anti-wrinkle occurs, instead of a general inflammation, because the inner layer of keratin cells in vivo remains more or less the same as before were in the water while waves outside the layer, the connections between these two layers are closely linked, while areas not connected are free to swell, so that the fingers and toes Prune.
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