How to Exercise to Strengthens Lungs

Besides the heart, lungs are also important organs in our bodies. The primary function of the lungs is to exchange oxygen gas from the environment into the body’s blood system and exchange carbon dioxide in our blood system out of the body into the environment. However, there was a period when the Covid-19 pandemic occurred which made many people worry whether they would be infected or not. If they were infected, what level of severity were they and what were the effects after being infected, or a symptom called long Covid?