"... found a 47 percent lower risk of sudden cardiac death among those who
consumed an ounce of nuts at least twice a week compared to those who did
not eat nuts at all.
"She also found a 30 percent lower risk of coronary heart disease death
among the nut eaters. The correlation did not apply for nonfatal heart
attacks."
http://www.cnn.com/2002/HEALTH/06/23/nuts.heart.reut/index.html