Peter Hibberd, M.D., is a doctor whose advice is based on more than 28 years of hospital outpatient and inpatient experience. He is an experienced emergency medicine physician, surgeon, and consultant. Dr. Hibberd is certified by the American Board of Emergency Medicine. He is also a fellow and active member of the American Academy of Family Physicians, an active member of the American College of Emergency Physicians, and a member and fellow of the American Academy of Emergency Medicine. Dr. Hibberd has earned numerous national and international professional certifications, memberships, and awards.
Tags: dizziness | dizzy | standing | up | hypotension | low | blood

Why Am I So Dizzy?

Thursday, 22 December 2011 09:51 AM

Question: Sometimes when I get up fast I feel so dizzy that I need to sit back down to avoid falling over. I don’t have any other major health issues. What could be the cause of this?

Dr. Hibberd’s answer:
You probably have a mild form of orthostatic hypotension — also called postural hypotension which is a form of low blood pressure that happens when you stand up from sitting or lying down and it's usually not cause for concern. When you stand up, gravity causes blood to pool in your legs. This decreases blood pressure because there's less blood circulating back to your heart to pump to the rest of the body. The simplest treatment is to sit or lie down immediately after feeling lightheaded or dizzy upon standing. Drinking enough fluids, such as water; drinking little to no alcohol; avoiding walking during hot weather; and standing up slowly may also help. Your dizziness will usually disappear. An exercise program that can strengthen your calf muscles is useful. If you don't also have high blood pressure, ask your doctor if, and how much, salt you can increase in your diet.

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Why am I so dizzy when I stand up suddenly?
Thursday, 22 December 2011 09:51 AM
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