Quoted from Trekkie1978:

The easiest way to lose weight is to not focus on losing weight.
Focus on living a healthy life...and everything will fall into place.
I lost 100 pounds in 10 months just by focusing on health and not weight.
Now I’m down 140.
Back in January, 20 months after changing my way of living, I completed the Dopey Challenge in Disney. 4 races in 4 days...5k, 10k, half marathon and full marathon.
I’m looking to do it again this January. The greatest feeling in the world was going from running out of breath walking up stairs, to 19 months later, doing the Dopey.