I'm a big guy looking to try and get back into shape. I used to play soccer and baseball in high school and was in shape, but the past 4 years, I haven't been active at all. I've since gained 50 pounds (from 180 to 230) and not too long ago I tried running, and I've got a lot of extra baggage to be running with. I get tired easily and am short of breath. I've been thinking I should just start walking for a while, but not sure how much a day to help out. Anyone else been in a similar situation? I'm just about 23 and don't want to continue down this path. Any suggestions for how to start some easy cardio and build into something better? Thanks for any input.