TIL When you stand, your body compensates for gravity by constricting blood vessels, ensuring that enough blood returns to your brain. In people with orthostatic hypotension, this mechanism fails and their blood pressure drops, leading to dizziness, lightheadedness, blurred vision and fainting.

Read more: https://www.mayoclinic.org/diseases-conditions/low-blood-pressure/symptoms-causes/syc-20355465

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