Techniques like diaphragmatic breathing (belly breathing) and pursed-lip breathing can increase oxygen intake, improve lung function, and help release trapped air.

Smoking is the leading cause of lung disease. Avoid smoking, and steer clear of secondhand smoke to reduce lung stress and prevent diseases like chronic obstructive pulmonary disease (COPD) and lung cancer.

Cardiovascular exercises, such as walking, jogging, swimming, and biking, strengthen the lungs and increase their capacity. Practicing deep breathing exercises can also help improve lung function and expand lung capacity.

Drinking water helps thin the mucus lining the lungs and airways, making it easier to expel. Hydration keeps lungs moist, which supports their overall function.

Foods rich in antioxidants (like berries, leafy greens, and nuts), vitamin C (citrus fruits), and omega-3 fatty acids (salmon, flaxseeds) support lung health. These nutrients can reduce inflammation, enhance lung function, and protect against respiratory infections.

Minimize exposure to environmental toxins such as air pollution, industrial chemicals, and fumes. If you live in a highly polluted area, try wearing a mask outdoors on days when air quality is poor, and consider using a humidifier in dry climates.