What makes men grow fat?

marriage

Beer, junk food, lack of exercise, lack of fibre in their diets, watching sport instead of playing it, desk jobs, knee injuries, stress which exacerbates weight gain, social factors which encourage all of the above.

Lack of exercise and beer 😂

[c=#359E00]food[/c]

Deep depression does a pretty good job with this.

Hard work and dieting