I can lose weight, I don't need advice for that part. But if I go below about 90kg then I get hunger (hollow stomach rumbles and amygdala interruptions of my concentration) which is difficult to tolerate with while programming a computer. I can't live well with that constant hunger. Being fit is nearly intolerable. It isn't a problem of getting there, it is a problem of being there. People have suggested that a carnivore diet or ketogenic diet prevents the hunger, but my body can't handle it right now. People have suggested that regular exercise fixes this too, and that is at least somewhat true, so I need to work out precisely how I'm going to do that given some situational hurdles. But it only helps to a limited degree, so there is a minimum weight that I can sustain without suffering and again I'm estimating that to be about 90kg. And my original point with this thread is that some people's bodies fight hard to maintain a certain minimum weight, and it's a genetic thing, and going below that is kind of like holding your breath... you can do it, but you'll give in eventually.