Dr. Curtis Reisinger, a clinical psychologist at Zucker Hillside Hospital in Glen Oaks, N.Y., said that it is likely the anger and hostility associated with type A personalities are what contribute to cardiovascular risks.Well, Dr. Curtis clearly needs to study medicine, and possibly check his teeth, because there is an explanation that doesn't require magical thinking.
Strep A bacteria cause obsession and anxiety and calcification of the heart valves- which is the primary cause of strokes.
(It also tends to make people believe crazy ideas and come to hasty conclusions about causality...)