We all know that exercise is good for us. We join gyms, start running, buy home workout DVDs, all in the quest for a fitter, slimmer, more toned body and improved health. But after a few weeks our interest wanes, we skip a session or two, life gets in the way and then we stop altogether. After a while we tell ourselves we really should do some exercise and then the cycle starts all over again. Regular, long term exercise feels like an elusive goal. Continued at MedicalNewsToday>>