Very true , and has people get older like me with arthritis in my legs from construction, I carnt run I can walk but like a seal , so has you get older exersize is only minimum. I do ride my mountain bike miles has it takes the body weight off my legs, but if I pull up fast and have to let the weight drop on one side I fall of the bike. Im not massive fat just fatter through meds ,without them I would be slim but sanity before vanity has the guy said.