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World Lung Day 2026: How to self-check your lung health and know when to see a doctor

On World Lung Day 2026, doctors explain how to self-check your lung health, from breathing and stair tests to pulse oximeters, peak flow and spirometry.
We tend to think about our lungs only when breathing becomes difficult. But lung problems do not always begin with dramatic breathlessness. Sometimes, you are suddenly struggling with a flight of stairs that never bothered you before, getting tired d... [7929 chars]
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