I am 60 got it about 3 months ago. I kept telling myself to get out of bed.Thought I read somewhere it was good to exercise your lungs no matter how much it hurt. Finally on day 3 I made it out of bed and made it to my garage and went for a bicycle ride.Only made 10 miles thought I was going to die it was very painful As painful as the bike ride was I always felt better after the ride. The next day I made 12.5 miles and again the ride was painful but when it was over I felt good.The 3rd ride I went 15 miles hurt a little less and felt good after the ride. Maybe I got lucky and had a real mild case but I think the bike rides helped me out.