- You realize that all other clothes in your wardrobe are pretty much for when you are dressed up to go out. Otherwise, you are in athletic gear all day.

- When you describe your day and the multiple events you accomplished (ie, spin in the am, tennis, afternoon run, maybe a night tennis match), people nod at you like they are talking to a mental patient

- You stress out about what you have packed up in your bag for the day: changes of shoes, correct changes of clothes, and IS YOUR IPOD CHARGED?

- when you are moody or depressed, the ONLY thing that will get you out of your funk is a great workout or run.