A member asked:

What could cause me to always be lightheaded?

A doctor has provided 1 answer

Low blood pressure: Low blood pressure or low blood volume (dehydration can cause that) can make it difficult for your heart to pump blood up to your head when you stand up. There are other more rare causes, but you should probably see a doctor to check it out. This problem is called orthostatic hypotension.

Answered 8/12/2012

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