Fainting, Dizziness & Autonomic Conditions
Vasovagal Syncope
A trigger slows the heart and widens blood vessels. Blood pressure falls, the brain gets less blood, and you faint for seconds. Lying flat restores flow and you recover fully.
This is a free, plain-language patient education guide written by Rias Ali, MD, FACC, a board-certified interventional cardiologist. Every guide is grounded in current peer-reviewed evidence and major society guidelines, organized in a way patients can actually use during a visit.
Download the Vasovagal Syncope guide
What's inside this guide
- Plain-language explanation of vasovagal syncope
- Why it matters and what the major risks are
- Treatment options with risks, benefits, and alternatives
- Common misconceptions clarified
- Lifestyle and self-care advice
- Specific warning signs — when to call us, when to call 911
- Sources used to build the guide (peer-reviewed and society guidelines)