Fainting during physical activity
Fainting during physical activity can indicate a serious heart condition. Unlike fainting from standing up too fast, exercise-related syncope requires urgent cardiac evaluation. Common causes include hypertrophic cardiomyopathy, heart arrhythmias and aortic stenosis. Seek emergency care if you faint during exercise, experience chest pain or palpitations before fainting, or have a family history of sudden cardiac death.
Common Causes of Fainting during physical activity
- Hypertrophic cardiomyopathy
- Heart arrhythmias
- Aortic stenosis
- Dehydration or heat exhaustion
- Exercise-induced asthma (severe)
When to Seek Urgent Medical Care for Fainting during physical activity
These signs may indicate a serious problem — don't wait, seek medical care right away:
- Seek emergency care if you faint during exercise, experience chest pain or palpitations before fainting, or have a family history of sudden cardiac death.
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