User blog comment:RaijinRising/Ozpin and the Color Naming Rule/@comment-27087951-20151110023852/@comment-4010415-20151110024422

This, exactly. The entire reason that our skin wrinkles is because it gets so worn out that it loses its elasticity. Organs slowly stop working as well as they used to because they've become worn out - this includes eyes. The cartilage between your bones can end up getting to the point where your immune system attacks it (arthritis).