How do you exercise when it is hard to walk, and little energy? I try to do it in the mornings, walking is about all I can do and it is getting harder. I have SPMS and diagnosed 13 years ago. I am 62 and try to keep my heart rate up and muscles in fair condition. I can't just sit and watch TV, always been busy but I just can't do it anymore. I don't have my strenght anymore, lost it with the first major attack which left me with partial paralysis. What do you do for exercising?