Gym? If you go to the gym to not get a belly you are doings wrong already, you can never outtrain your fork.
People get fatter as they get older because they don’t adjust their calorie intake to their decreased level of activity, there is nothing about a human body that says you have to get fatter as you age
Source: am a fat fuck
I feel like tying people ip just for having long hair is a bit much, but I am also into rope play so whatever