My motivation started from trying to walk up a steep path about a mile long and having to stop about 12 times because my legs were cramping and I couldn't breathe. Started walking every day after that, then joined the gym. Started running when my knees could handle it. Now I enjoy weight lifting and running and couldn't imagine life without them. Look back at pictures where I look 10 years older than I do now. Having trouble getting started? Climb a mountain path!! Nothing like it