I used to be a little fat kid with undiagnosed asthma. My solution was two-fold—having a WWII vet for a Dad (the real deal who actually killed some nazis) and deciding that I would get in shape by doing the hardest thing for me at the time—running.
Now at age 68 I still have asthma and arthritis, but I’m able to walk a couple of miles every day and do most of what I want.
My father was a WW II vet, as well. I don't know if he killed any Nazis; he wouldn't talk about it. But he, too, was "the real deal"; he fought in the Battle of the Bulge.
All WW II vets were "the real deal" just by virtue of the fact they were THERE.
"Now at age 68 I still have asthma and arthritis, but Im able to walk a couple of miles every day and do most of what I want."
I'm 51, and I agree that "use it or lose it" is more than a cliche---it's true. I've worked out for most of my life. To be honest, I'm burned out on it, but I know I have to keep it up.