From one who is taking baby steps, I have no choice, as found myself so weak, so frail, simply through inactivity. I spent a year in bed literally. Only getting up to wash, or shower and to ping something to eat in the microwave. Now I am taking baby steps. With lonliness and nothing to get up for it's hard. A ten minute walk to the shop kills me. Now on day 5 since I even got up, dressed and went out. Physically I am so weak, all through inactivity. Today I managed to hoover, a bit. That nearly killed me. I just managed to shower at gone 9pm, and am exhausted. Am now in bed, but I took baby steps. Don't run, before you can walk.