One of the best things I have done for myself is to get back on a bicycle and ride. I rode constantly in the 70's, 80's and early 90's and got away from it. I can't run/jog because or spinal arthritis so a low impact exercise fits the bill for me. I ride every day commuting in Houston and in the past 7 months have dropped about 35-40 pounds and am down to about 195 now. Target weight is 185. The more you sit around and do nothing the worse you feel, physically, psychologically and emotionally.