About 30 percent of all teens could not pass a standard fitness test for cardio health, strength and endurance. Jillian says she hates her gym class. "I hate gym with a burning passion," she says. "I hate jogging. I'm going to bawl my eyes out."
Haven says her dad makes her take walks, which she dislikes. "I wheeze a lot when I walk," she says. "It bothers me that I'm out of breath and I sweat too much, even for the littlest thing."