My definition of health: the well being of your body and mind. The books definition: the well being of your body mind and your relationship with other people. The definition of health from Wikipedia.org is: Health is the level of functional or metabolic efficiency of a living organism.
I have a friend that does not exercise but I do I would show her a picture of what she might look like if she doesn't exercise and then give some ways to exercise that she might wanna do.