Q When I sit down and then stand up, my vision spins and I feel dizzy. Is this also an autonomic nervous system problem?
A When the autonomic nerves that quickly regulate blood pressure upon standing become sluggish, blood flow to the brain briefly decreases, causing dizziness (orthostatic dizziness). It is a common symptom, but if it leads to fainting it can be dangerous and needs to be checked.
Detailed Answer
When you go from lying or sitting to standing, the autonomic nerves must immediately constrict blood vessels to maintain blood pressure. If this response is slow, blood flow to the brain briefly decreases, causing your vision to go dark and making you feel dizzy. Insufficient water and salt intake, prolonged bed rest, and certain medications can also be causes. Standing up slowly and drinking enough water can help, but if you repeatedly nearly faint or actually faint, heart and autonomic nervous system testing is needed.
Our Korean Medicine Clinic's Perspective
Korean medicine views dizziness on standing as connected to a state where energy fails to rise properly or circulation is not smooth. Replenishing deficient energy and aiding the circulation of ascent and descent can reduce sudden dizziness. However, if fainting occurs repeatedly, we first recommend medical testing to rule out dangerous causes.
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