Pessimists more likely to die from heart disease
CHD - also known as coronary artery disease (CAD) - is the most common form of heart disease in the United States, responsible for more than 370,000 deaths every year.

CHD occurs when plaque gradually builds up in the walls of the coronary arteries, which supply oxygen-rich blood to the heart and other areas of the body. Over time, the heart muscle can weaken, causing arrhythmia - irregular heartbeat - and heart failure....

http://www.medicalnewstoday.com/articles/314179.php
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