asthma burning

What are some good fat burning exercises that do not make you so tired you feel dead?

I love walking but it does not burn many calories. I have asthma, so I have to be careful running. I need to lose about 50 pounds to be healthy. I also want some exercises that do not make you so tired that you feel dead. I don’t want to take a hour nap and then be up all night long. Thanks!

try jogging in place thats easy

Burning Secret (1988) 1/10