It’s so true! Can’t believe the number of times I’ve had a New Years resolution to get fit. With a bunch of other people too that never did. You have to want to be your best self. That takes caring about yourself and a positive outlook on the future. That can be hard to muster when you’re fat and sick. It’s often accompanied with other unhealthy behaviors as well.The reason for consistent long term diet and exercise is strictly up to each person. What is important enough to make a person choose a protein shake over pizza year after year. I dunno what it might be for any one person, I do know that the majority of the time it won't be a doctor telling them to change their lifestyle. People get hot on the IDEA of exercise and go cold just as fast. In my gym rat days I always hated January, the gym would be full of "New Years Resolution" people but at least I knew that by February things would be back to normal. Diet and exercise just for the sake of diet and exercise almost always fails. There has to be reason that makes the negatives worth the effort.