Gym Class Fitness founder and personal trainer Jessica Gereau shares the life skills and slimming techniques learned during her own inspiring weight-loss journey, which left her 60 pounds lighter. During personal-training sessions, instructors focus on accountability—they'll call if students skip class—to cut coach potatoes into shapely french fries. The gym's wall-to-wall mirrors reflect images of treadmills, free weights, and aerobic equipment that facilitate group exercise classes and save students the hassle of hauling in their own Stairmasters. The establishment also hosts run meetups every weekend, where joggers follow a certified coach to explore the East Bay landscape while tracking mileage, oxygen consumption, and times to improve performance.