Pursed-Lip Breathing for COPD---One way to slow down the progression of COPD is to keep your chest muscles active through aerobic exercise, stretching, strengthening, and special breathing exercises.

Pursed-Lip Breathing for COPD---One way to slow down the progression of COPD is to keep your chest muscles active through aerobic exercise, stretching, strengthening, and special breathing exercises.

Original article and pictures take https://everydayhealth.com site