Hello. First of all I would like to introduce myself. I am a married 52 year old, 140 lb. who is contemplating on trying to be fit. I am a beer drinker with a paunch in front of me and also a smoker (about half a pack a day). I am currently having lower back problems because during my days off from work (automotive electrician), I just sit in front of my laptop and read, watch Netflix movies on TV, and keep on thinking that I need to do this and that to be fit but have not done any of my plans. During my teens, I was a swimmer but eventually became a couch potato. I plan on doing boxing workout and have been researching the types of punching bags out on the market...their pros and cons and the suitable weight, diameter, and length. I have information on those now but I was hoping to be a part of a community that will give me advise on how to start to do boxing as a cardiovascular exercise as well as building some muscle and muscular strength. I have no medical conditions at present except for my lower back pain that comes and go's whenever I lift heavy objects like car batteries. I hope that I have come to the right place.