Ok so, I recently quit smoking so I can focus on training and getting in good enough shape to fight. Does anyone have an idea that would help me give my cardio a boost pretty quick so I won't gas as quickly and can actually be prepared to step into a fight and know I'm ready to go however many rounds I need to? I know it's going to be a process and not happen over night but I gotta do something. I can barely make 3 laps around my block without almost hyperventilating now. Haha. Any ideas to help me get a boost quicker than the pace I'm moving now would be great. Thanks in advance guys.