You know you are getting old when: You need reading glasses. When you watch TV more than you go jet-skiing. When you have grandchildren. When the retirement party is for you. When you get the senior citizen's discount without asking.
When you find yourself begining to be annoyed by younger people and saying things like
"when I was.......... we used to..... " a lot, then you are beginning to get old.
Your body will let you know when you are getting old. When you start to feel aches and pains and when you have a hard time getting your body out of bed, you are starting to get old.
You can tell when your getting old when it starts to become harder to bend over. When your skin becomes rough and wrinkly. You can tell your getting old when you start to have problems urinating.