KZTV Action 10 NewsThe fitness craze - where did it begin?KZTV Action 10 NewsGyms, gyms and even more gyms. Many believe that the fitness craze is here to stay. Michelle Greer has been a fitness addict for 25 years. She is also a personal trainer at US Gym in Corpus Christi. Greer says that, “everybody is doing it.” But, the ...