None of the sports you mentioned is suitable for you. You can't do strenuous exercise because of asthma. Besides, you should pay more attention. It's no problem to change jogging to walking, but pay attention to the time of walking. It's not good in the morning or at night. The temperature is not well controlled in the morning and evening, and the air is not fresh. The best time is 10 am and 2 pm. At this time, the sun is the most abundant and the yang is strong, which is suitable for raising illness and storing energy.

The best way to exercise is to practice yoga. You can find some regular videos online, and you must practice according to the correct breathing method. For the first time, it is recommended to practice in a yoga studio for about a month, because yoga has many precautions, which can improve human immunity and exercise your breathing ability. Promote body metabolism, etc. This kind of slow exercise should be persisted and the effect is very good.

You can also cupping at home, just buy the kind that is vacuumized, which is safe, hygienic and convenient. Cupping can improve your organ function, unblock your qi and blood, dredge your meridians and improve your immunity.

I am as old as you. When I have asthma, I can't take care of myself, let alone go out to work. So I have been suffering from physical pain, psychological pressure and that kind of guilt. The above two experiments were done by myself, and they really worked. I hope they can help you and sincerely wish you a speedy recovery.