A member asked:

Can practicing regularly to fill air in balloons by mouth strenghten the lungs over a period of time?

A doctor has provided 1 answer

NO: Blowing balloons will not strengthen the lungs, may even harm the lungs , constant forced inflating of lung will form blebs , even create emphysema like changes in some , how ever your respiratory muscles may get stronger.

Answered 6/21/2020

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