I can confirm the article's introduction: willpower behave somehow like a muscle. Or, at least, you can act as if it was so.
From my own (little and personal) experience, I've found it usefull to get into the habit of flexing it whenever I can, if possible in public. Just something like "ok, I'll go with you eating there, I'll just take a salad if you don't mind". Sometime people don't take the opportunity to discuss it further, but when they do it's an easy way to play the role of the guy who's aim in life is to improve his willpower. Incarning a role is, from what I've found so far, the best path to really become that person you want to be.
With time, I've found that there's a pattern that occurs when I'm placed in front of a bad looking choice, and it seems more easy to counter that pattern when it pops to mind, along with the memory of previous "willpower workout".
From my own (little and personal) experience, I've found it usefull to get into the habit of flexing it whenever I can, if possible in public. Just something like "ok, I'll go with you eating there, I'll just take a salad if you don't mind". Sometime people don't take the opportunity to discuss it further, but when they do it's an easy way to play the role of the guy who's aim in life is to improve his willpower. Incarning a role is, from what I've found so far, the best path to really become that person you want to be.
With time, I've found that there's a pattern that occurs when I'm placed in front of a bad looking choice, and it seems more easy to counter that pattern when it pops to mind, along with the memory of previous "willpower workout".