and btw, if there was a successful way for one party to motivate another to workout and lose weight that could keep a person on track for more than 4-6 weeks, you could be the richest gym owner ever
as it is, gyms require a douchebag sociopath to demonstrate to a person that their life is at risk, ... heart disease, diabetes etc etc and that they won't live to see their kids graduate and then get them to sign a multi-year contract in the moment... knowing they will only be there for 4-6 weeks.