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A member asked:
How come i feel dizzy and black out for a second whenever i stand up too quickly?
A doctor has provided 1 answer
Ortho static change: Blood pooling in your leg causes transient decrease blood flow in the brain (highest point of your body) , it take seconds for heart to pump faster and arteries to constrict in order to send blood to brain. Hydrate well, get up slowly. See doctor if repetitive, severe or disabling.
Answered 7/11/2012
5.7k views
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