I need some help trying to find motivation for my 17 year old easy child son. He has a difficult child 24 year old brother in jail. However, my 17 year old needs to exercise or he is going to be fat. We watch what we eat but he likes to play video games with his friends and gets no exercise. I told him we are buying all of us bikes for Christmas - also we are members of a gym. I tried taking him - making him - go with me in the afternoon after school. It worked for a while but something came up and we lost the momentum. What else can I do? My daughter that is 21 and married came over today and told him to do something different with his hair and dress differently, etc., She is very pretty and always goes to the gym but my 17 year old is so very gentle and kind and a marvelous kid. I just dont know how to get him motivated in a physical way. His Dad tries to exercise at his lunch time. Any suggestions?