There are many Yoga Asanas that help in improving your lung capacity. Not just the Yoga asanas, but there are many exercises such as diaphragmatic breathing, pursed-lips breathing that can help maintain the lung capacity, making it easier to keep your lungs healthy and get your body the required oxygen.
Source: www.news18.com/news/lifestyle/covid-19-this-is-how-you-can-keep-your-lungs-healthy-4775201.html
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