Why do our fingers wrinkle in water ??

 Its our nervous system doing it on purpose  !!!

The top layer of our skin has only dead skin cells and keratin.  It soaks up water and swells.

The layer underneath has blood vessels and nerves.

When we are in water for 5-10 minutes, nerves under the skin makes the blood vessels to get smaller.

So, outside gets puffy whereas inside skin is getting smaller  !!!

Result :

Skin wrinkles up to get fit

It wrinkles in lines because that is where the skin is attached tighter.

If nerves to our fingers are cut ,  our fingers don't wrinkle in water anymore !!!!

So, skin wrinkling is the work of nervous system......

Wrinkled fingers work like tire treads. They channel water away so that we can hold wet things in better way  !!!

So, skin wrinkling is for better grip.......