Alan Worth is at the gym Tuesday afternoon, a guy faithful to his workouts.
He was a slacker -- a couch potato, self-described -- back when when he was practicing family medicine.
Now he's organized a twice-a-week class at the Cooper YMCA. Proposed it. Promoted it. Solicited money for it.
The class began three weeks ago and meets every Tuesday and Thursday at 4. A few people arrive in scooters. One man walks with a cane.
Alan uses a cane sometimes, too.
He was diagnosed with multiple sclerosis four years ago. He'd been tripping over his feet, thought he was just clumsy.
Instead, he found out he has a slow but progressive form of the disease, which blocks nerve impulses to different parts of the body.
Click here to read more on: working out with MS.