those of us with health problems that can't be "fixed"  This is very true. I have a genuine genetic condition that makes my heart a piece of shit. (ARVD/C and SVT) No amount of diet can help that and exercise has to be limited to cardio-free weightlifting and hiking on flat terrain, taking hills slowly. I can still run up a flight of stairs if there's an emergency (or is a basement monster is after me) but it takes a minute or two of deep breathing and counting in my head to make my thundering heart rate go back down into the 100's. But hey, I don't have joint trouble because I am not fat, so I have it soooooo easy, I don't understand what it is like to spend days in a hospital and have to change my lifestyle at my doctor's request, I have nooooo  ffa   idea how hard it is to not be able to keep up with others all the time. I can shop at regular stores, so I must be super blessed with not having to be covered in wires every few months and take hours of m life for regular checkups on muh condishun. I am so lucky that when I have to fly to a different city for these checkups since we don't have a clinic in my town, that I can fit into the seat without having to move the armrest up. What a blessing!!!! /s If eating 1000cal and running 10 miles per day would fix my heart, I'd do it in a (lol) heartbeat.