Stacey Blank remembers the day she first read about an exciting new tool to improve the health of patients with lung diseases. That tool was the harmonica, a small musical instrument that you play with your mouth. Blank works at a hospital in the American state of Maryland. There, she supervises a program that treats patients with lung diseases. Her career goal has been to help her patients breathe better. You don’t realize how tough it is to live every day and be short of breath, she says. To help her patients, Blank became involved in Harmonicas for Health. The national program shows people with lung disease that learning to play the harmonica can improve breathing.