Dr. John Kois lists 4 risk factors which we've already covered, but over the years I've added a few. One is physiologic risk. I see a lot of people with sleep apnea, allergies, and other seemingly non-dental issues and I've come to consider them as physiologic risks. I highly suggest you get training in sleep apnea and go to a course and get educated in this area, it could make a big difference to your patients or someone you love. I'm a good example of this risk factor and I'll talk about some of my personal experiences regarding physiologic risk in today's episode.