I want to share with everyone this great, if some what morbid web find.
http://www.yourdiseaserisk.siteman.wustl.edu/
This site asses your risks for a variety of diseases and gives you specific actions you can take to reduce your risks. For example, I could be eating more tomatoes to reduce my risk of prostate cancer, and have a low risk of melanoma.
Anyway, I encourage you to check it out.