The decision to keep fit requires from you huge effort. You have to go to some place, spend money, sweat in presence of strangers and feel ashamed of your extra weight in front of them. Of course, you want to have slim body and strong muscles to be the star of the beach or of some other place, but sometimes this motivation is not enough to make you actually do something.
Modern technology, however, provides you with the means which will help you to loose weight and will not demand you to become a hero of the local fitness club. You can keep fit and train different groups of muscles while playing and having fun. Besides, there is no need to leave home.