It irks me that people don't really minimize the most likely risks to their health, but instead worry about relatively trivial risks. This information is readily available.: N C H S - FASTATS - Leading Causes of Death http://www.cdc.gov/nchs/data/dvs/LCWK9__2004.pdf Heart disease is at the top as a risk of death in the US, followed by cancer. Here you can see what leading causes of heart disease are.: http://www.americanheart.org/downloadable/heart/1200082005246HS_Stats 2008.final.pdf Doesn't it make sense to reduce the obvious and well documented risks to the heart before worrying about new possible risks?