Dizziness may cause you to feel light-headed or weak. You may feel like you are going to faint. Dizziness can happen for a short period of time or be a long-lasting condition that gets in the way of your daily activities. It is different than vertigo, which is a feeling that the room is spinning or rotating while you are still.
Many conditions can cause dizziness such as:
- Orthostatic hypotension, a drop in blood pressure when standing
- Neurological conditions
- Conditions that affect how the heart pumps blood to the body
- Anxiety disorders
- Alcohol or illicit drug use
- Infection or fever
- Head injury
- Hypoglycemia, low blood sugar
Prescription medications can also cause dizziness. These may include:
- angiotensin-converting enzyme (ACE) inhibitors
- Calcium channel blockers
- Tricyclic antidepressants
- Monoamine oxidase inhibitors
Blood Flow to the Brain
Copyright © Nucleus Medical Media, Inc.
Last reviewedApril 2013by Rimas Lukas, MD; Brian Randall, MD
Please be aware that this information is provided to supplement the care provided by your physician. It is neither intended nor implied to be a substitute for professional medical advice. CALL YOUR HEALTHCARE PROVIDER IMMEDIATELY IF YOU THINK YOU MAY HAVE A MEDICAL EMERGENCY. Always seek the advice of your physician or other qualified health provider prior to starting any new treatment or with any questions you may have regarding a medical condition.