I am a fitness fanatic but an studying abroad in london and can't afford a gym nor have the time. I was wondering what is going to happen after 5 months of non-cardio and non-weight traing work? Will I gain weight? Will my metabolism slow down a lot. If I stick to running 3 days a week will these keep me going? If I run I always want to do more but can't. Weight training is a nill. What is going to happen to all my muscle? Will is atrophy or just reduce strength and how long until I get my results back?