Control your eating. More Protein, more veggies. Eating in a way that is healthy and keeps your weight down is not expensive. A few bodyweight exercises can be done several times a week and take only a few minutes. It's possible to be in good shape and lean even if you are poor. If you want too.
Ok Governor Schwarzenegger, I think you are missing the point. There are three factors that determine your healthiness:
1. Willpower/discipline/ (i.e. if you want too!)
2. Habit (nurture)
3. Environment (income, climate, work schedule, nearby grocery stores)
Any deficiency in one factor must be made up by another. Yes, (1) is good enough if you have a lot of willpower/discipline to spare, but not all of us do. (2) is ideal, but maybe our parents didn't do such a great job. (3) allows perhaps allows you to overcome (1) and (2), but not always.
Close, but not quite. I'm more german than austrian.
Actually I'm doing my PHD on adherence to healthy habits and behavioural change (preventative medicine with a focus on exactly these things). ;)
The whole willpower shtick is a bit overplayed based on the available evidence. The real (first) problem is often learned helplessness. And then a lack of knowledge on how to change things and which things are most important. Shaping your environment and changing your habits without using significant amounts of willpower.
It's doable.
