Psychoneurocardiology?

Here is the dark side of positive thinking and self affirmation:

According to studies by Becca Levy of Yale School of Public Health, those who had a poor regard for the elderly were much more likely to have heart-related problems long before those volunteers who viewed old age positively and also had shorter lifespans.

Not only are you what you eat... you may just fulfill you own stereotypes as well.

Another recent study published in the Journal of the American College of Cardiology showed that fits of anger can lead to heart attacks, not really news but true enough.