Have you heard about "Real Age"? It's a website I really like, and can say it's very informative and useful to me. Everyone could wish they had these doctors teach them preventive health tips. There are many wonderful videos by Dr. Oz and Dr. Roizen, and there are many healthcare tips on the website.
Here's a link to the website to take the YouQ test they talk about. Really amazing, and the website is expanding.
Also, the realage.com general health test is a wonderful one to update and retest from time to time. It's great because it's as private as your computer is, and a great way to learn how to improve your own health. Disclosure: no financial interest.