I work outside in my yard until the weather forbids it. I had an exasperation in Feb of this year and still haven't fully recovered from the Pneumonia that I also had. I found a recipe to increase my breathing capability last week online so far it seems to be working.
The recipe is, pour 1 liter of water into a pan and to on the stove until it starts to boil. After it boils reduce heat to a simmer and add (1) 14oz. onion chopped coarsely, 2 tablespoons of grated turmeric and 2 tablespoons of ground ginger. Continue to simmer until the liquid is reduced by half. Take the pot off the stove and let it cool. Strain the mixture in a fine colander. When it is cool add 4 tablespoons of Honey and stir. The mixture should start to thicken. Refrigerate and take 2 tablespoons in the morning and 2 at night. You should feel a difference in your breathing in 2-3 days, I know I did

I find walking a good exercise Do it as much as you can without getting over tired.

CV exercise is the best answer just get out there when you can and as often as you can.

Hi guys and gals ... I go to a maintenance program ... I walk on a tread mill for 60 min. then take a 40 min exercise class right after .. in the summer my wife and I walk 3kms every other day that I dont go to maintenance ... it took a long time to get to this point . carrying the liquid oxygen is a pain but no one said it was going to be easy .In the end it all works and I couldn't be happier

My son quit smoking for 3 months, using a vape, now I'm introducing myself to his vape machine, I'll try anything that I can use, to quit smoking, wish me luck, have a wonderful day, Ron