All kidding aside, depends on all kinds of things. Weight is only one factor. You can get away with a few extra lbs, but if you cannot run a mile without falling on your knees, and your belt is over 38, you need to decide if you want to leave this world 10 to 20 years earlier than you have to.my girl knows my eating habits and vows to change them. she knows since i was 16 and went to work full time i have eaten off coffee trucks or fast food almost exclusive with my only home cooked meals being major holidays. hell this last year alone since i been doing long haul driving, i eat at truck stops every day unless i am at home in which case i eat pizza. i should be a lot heavier than i am but i do go for walks and exercise.
of course when i sneeze my arms go numb and i get severe chest pains almost daily and my heart burn is enough to make me crouch over in pain and ask god to kill me quickly.
You might ask your girl to run naked and let you chase her
Loki is not allowed to. His family needs him. Especially me.