Breathing life into your lungs
"Your lung function declines with age, like other parts of your body," says Dr. Aaron Waxman, director of the Pulmonary Vascular Disease Program at Harvard-affiliated Brigham and Women's Hospital. "Your lungs finish development by age 25, and their function remains stable for about 10 years. After that, they begin to gradually decline. By age 65, you've typically lost up to a liter of lung capacity compared with when you were younger."
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