Lungs & Breathing
Information on asthma, COPD, chronic cough, and shortness of breath—home steps, medication basics, and red flags. If breathing becomes difficult, you’re gasping, or lips/face look bluish, call 911.
When to worry, when to adjust inhalers, and when to seek urgent care.

Start with a common task
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Shortness of Breath: Common Causes and Red Flags
Shortness of breath can come from lungs, heart, anemia, anxiety, or infection. The key is recognizing when it’s urgent. Call 911 now if Common causes What may help at home (mild cases) When to book a visit Next step More resources: Lungs & Breathing. If breathing feels significantly worse than usual, don’t wait—seek urgent evaluation.…

