Body Atlas

Healthy Lung Habits · Lungs

Does exercise make your lungs bigger?

Exercise doesn't grow lungs — it improves everything around them.

The simple answer

Here's a myth worth correcting: exercise does not make your lungs bigger. Lung size is largely fixed. What training improves is everything the lungs are attached to.

Go deeper

There's more: exercise doesn't grow lungs — it improves everything around them. The full explanation — and the interactive version you can tap and quiz yourself on — lives in the app.

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