http://www.sciencedaily.com/releases/2009/07/090703065222.htm

 

There is the link. It is also about how rushes of blood to the head can be caused by anger, although from what I read, they seemed to have an exceptonally low number of subjects.Never the less, enjoy.

Nice find cameron. Another identifiable marker of hypertension and a means of possible diagnosis, I guess. Another reason to modify my diet to reduce caffeine, sugar, salts and fats. Hang on, that IS most of my diet!