 At Rocksteady Boxing in Lawrence, nearly a dozen lace up, tighten their fists and fight a horrible foe, Parkinson's disease. If you watch any boxer that's training for a fight, they train the same exact way. An intense 90 minutes of force, non-contact exercise aimed to delay the disease's debilitating effects with maximum energy, speed, balance and confidence. Although they'll never enter the competitive ring, these boxers train hard. Meet Rocksteady Gregg. He was diagnosed with Parkinson's in 2008. A gift of free boxing lessons at a local gym introduced him to Al. Couldn't do one set up after we were done like what we're doing now, now it's in pitiful shape. But he became hooked to boxing and gained more than a trainer, a friend. Gregg shared his ambition to expand a program based out of Indiana to the East Coast. The pair gained certification and Rocksteady Boston emerged. Gregg says it's certainly been his rock through a tough battle. I was diagnosed when I was 58, when I got to be 60, things weren't getting any better. So I took a stock in my life and said I got to change something. So I call Colin, Alex, Kailin and Quinn, closer to my grandchildren, and I'm going to dance to their wedding. It's a worthy cause, and I want to ski again too. It shows exercise is a key medicine to this progressive disease. Exercise is becoming, is being recognized as being more and more important in Parkinson. I think most patients are very courageous. Most people just take the bull by the horns and just fight it. That is certainly true for boxers at Rocksteady. Everybody works hard, nobody's complaining, there's so many excuses that can be used. You kind of live in the shadow world. It's, everything is hard to open doors, it's hard to turn stuff off and on. My legs get, when I wake up in the morning, my legs get heavy, I've got a rope to my meds kick in. I get up in the morning and I don't want to come, and I get tired, and I drive to the lawns, but I know that once I get here, I'll be better off for it. This group of boxers have become a family, one that Greg says means the world. When you're doing those exercises, what's going through your head? I feel normal. I feel good. We don't ever give up, we fight, we fight back, and Parkinson's is our focus.