alt Hacker News>No, it doesn't
If you owe the bank $100,000 that's your problem.
If you owe the bank $10,000,000,000 that's the banks problem.
Obesity is a 'bank problem' issue. When everyone around the globe is massively gaining weight, in every country on this planet that's not in a war or famine, this isn't a human willpower issue. Something has changed, and to ignore that is unscientific.
All that has changed is the environment and lifestyle humans live in, and it's quite obvious discipline and willpower cannot overpower that environment on average.
The change was far too rapid for anything else to be remotely the primary cause.
If you put a past heroin addict locked in a room with unlimited heroin readily available, chances are likely 9 times out of 10 that person is going to partake eventually. Same goes for our food environment and way of life.