DAVID GREENE, HOST:
Good morning, I'm David Greene. People who are overweight often say there was that final moment - that's it; I'm sick of it. I'm making a change.
For Nat Ambrose, it was last year at King's Dominion, the Virginia theme park. He tried to get on his favorite ride, Volcano the Blast Coaster, but the harness wouldn't fit his 300-pound frame. He lost 30 pounds in a month. Tried again, still couldn't squeeze in. Finally, nine months later, 105 pounds lighter, Nat Ambrose has conquered the Volcano.
It's MORNING EDITION. Transcript provided by NPR, Copyright NPR.