I think it's more of will power to be honest...sure you can delve deep into it and pull it out but I think it just at ground zero it's lazy.
For me I just wanted to impress girls, so I busted my ass all summer long to come back and make an impression...it's drive man, some people just don't have it or want it that bad.
You can make excuses for everything, but in the end your only cheating yourself.
The same could be said about people who are depressed. They should just "snap out of it" and stop being whiny emo bitches, right?
If you lost over 20 pounds and keep it off for over three years, statistically speaking you're 1 in 10,000. Those kind of numbers mean it's not enough to just slap a lazy label on the other 9999. If "lazy" is the problem, then "lazy" is a deeper and more difficult thing to treat than you think. Most people just aren't capable of success. I guess that is pretty hard to accept though, but numbers and decades of research really can't just be thrown out the window just to make us feel like we're really in control.
It's like cancer or heart disease - we all want to think that by not smoking, exercising, and eating lots of broccoli, we can avoid heart disease and cancer, but we can only minimize the risk - we can't completely avoid cancer or heart disease without a big chunk of good luck. Same with significant and lasting weight loss: we can do all the right things, but a big factor is good luck in having all the necessary genetics and tools and personality and lifestyle and support network. Without having all of those ducks in a row, "healthy, natural" weight loss may not be possible or sustainable.