finasteride does not make you fat
Not all bald people are in good shape. Now some of the overweight ones think they have a new excuse. I think it's been easier for my to gain muscle strength in the gym now that I've had that testosterone boost.
I've noticed a lot of chubby faced shaved bald guys. I think some escape the pain of knowing they can't date who they want by telling themselves that appearance does not matter, since they feel (and may be right) that their baldness is out of their control. While it is good to stop stressing, some people stop working on their muscles and tummy because they have already made themself forget that appearance matters. The trick is to not worry about what is out of your control, but still worry about what is in your control, and not be depressed by your hair, but still know it matters and try to do a few things about it. Some people just don't balance that well, and let themselves go physically.