David Lyons was a healthy bodybuilder and gym owner when he was diagnosed with multiple sclerosis in 2006 at the age of 47. The doctors told him he would rapidly decline and require a wheelchair. Instead David battled the disease in the gym and challenged himself by competing in an NPC bodybuilding competition. David and his wife Kendra then founded the MS Fitness Challenge, which provides certified fitness professionals to people with MS nationwide for 12 weeks at no cost as well as a gym membership, in an effort to educate and train them in the benefits of exercise and nutrition. He and Kendra have also launched their own gym, the OptimalBody Personal Fitness facility in Murrieta, CA.