That's a big part of it, you have to have a desire and a mindset to overcome adversity.I've seen this before
Pain brings on sedentary livin . Then the weight packs on and compounds the same issues that the pain makes you want to not move in thr first place
So many people who are disabled are also morbidly obese. If they lost down to a healthy weight and started moving again, they could live a much better life
He done 2 things that improved his life
He lost 100 pounds while working on his mobility and strength
His attitude brought about a 180 deg change in his physical condition
Good for him