Why Do I Feel Faint When I Stand Up?
Feeling faint when standing up is called orthostatic hypotension, a condition where blood pressure drops suddenly upon standing. This happens when your cardiovascular system can't quickly adjust to gravity's pull on blood pooling in your legs. Dehydration is the most common cause, affecting up to 20% of adults over 65. Other triggers include certain medications (especially blood pressure drugs), prolonged bed rest, or underlying conditions like diabetes. The faintness typically occurs within 3 minutes of standing and may include dizziness, weakness, or blurred vision. Standing slowly, staying hydrated, and wearing compression stockings can help prevent episodes.
Related Questions
How much water should I drink to prevent dizziness when standing?
When should I see a doctor about feeling faint when standing up?
Can orthostatic hypotension be a sign of a serious condition?
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