Three things you might not know about stroke:

1. People having a stroke usually are able to hear and comprehend what's happening around them.

2. Up to a third of the patients who appear to be having strokes turn out to have other medical problems that mimic strokes.

3. Many people have medical conditions of which they are unaware that increase their risk for stroke.

Interventional neurologist and stroke expert Hesham Masoud, MD, and interim stroke outreach coordinator and nurse Josh Onyan field questions submitted by "HealthLink on Air" listeners and Facebook followers to mark Stroke Awareness Month in this special, half-hour interview.