What Causes Shortness of Breath? Shortness of breath isn’t always asthma. Common causes include: COPD (Chronic Obstructive Pulmonary Disease) – persistent cough, wheezing, and fatigue Heart problems – heart failure or arrhythmias can reduce oxygen delivery Pulmonary embolism – blood clots in the lungs causing sudden breathlessness Lung scarring or fibrosis – reduces oxygen […]
Why Shortness of Breath Isn’t Always Asthma
Apr 4, 2026
