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Bodybuilders by definition are self-selected subset of people who can consistently apply high self discipline and dedicate a lot of energy and willpower on that. I think it's pretty safe to count them as outliers when looking at solutions to obesity in the general population.

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Actors also have to bulk up or slim down for roles. Probably however you have a higher self discipline when you're getting paid for it.

on edit: quick nme listicle on actors gaining losing weight, body modification for roles https://www.nme.com/photos/15-actors-who-underwent-incredibl...

I think an actor successful enough to make that list is likewise far from typical. Maybe some get lucky, but most actors detail years of discipline breaking into the field.

Also the glossy mag articles don't get written about the actors who fail or struggle with it. Or drop out of acting with long term weight/diet/eating disorder problems as a result. Survivor bias.

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