A member asked:

What causes dizziness when i stand up from lying down ?

A doctor has provided 1 answer

Orthostatic hypotens: Orthostatic hypotension (also called postural hypotension) is a form of low blood pressure that can cause dizziness. It happens when the blood vessels do not constrict (tighten) as you stand up, which makes you feel dizzy.Everyone is likely to experience a mild form of postural hypotension at some time. It’s the lightheaded feeling you may get if you leap out of bed very quickly.

Answered 6/22/2019

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