There are certain things that are a part of life. One of them is aging. When you are a kid your baby teeth fall out and your adult teeth grow in. At a certain point people get gray hair, need reading glasses, wrinkle, get cataracts. Sometimes its comforting to know that some milestones are just a normal part of life and others times its not as easy to go with the flow. Its not as easy when it happens to you even when you logically know that its just a part of life.