Dempsey Marks grew up in an incredibly active family where fitness was never an obligation to me—it was a way of life. She was diagnosed with gastroparesis (likely from a crippling virus), a condition in which the stomach is essentially paralyzed, unable to digest most food. She reluctantly started working out with a trainer. Dempsey always enjoyed being active but she was so weak it was painful to engage in any type of athletic activity. But she kept at it. And it worked.
She was hired, became an AFAA certified personal trainer, and fell in love with helping people achieve their fitness goals.