Breathing & lung testing
DragonBreath
Spirometry is uncomfortable, repetitive and easy to get wrong. Breathe in to power up a dragon, then breathe out fire: the breath becomes the action, rather than another instruction to follow.

Breathing & lung testing
Spirometry is uncomfortable, repetitive and easy to get wrong. Breathe in to power up a dragon, then breathe out fire: the breath becomes the action, rather than another instruction to follow.
