What if you could get a home kit for testing your DNA: all you had to do was spit into a vial and send it off. The results would be posted on the Internet for your own viewing pleasure. Would you pay $1,000 to do this? Well it's not just hypothetical -- a company called 23andme based out of San Francisco is doing just that by using only people's saliva.

The company likes to brag that "genetics just got personal," and if you haven't made the connection yet, the name comes from the number of chromosome pairs humans have. After sending in your saliva sample, they conduct dozens of tests to assess your risk factor for just about anything. Breast cancer, diabetes, multiple sclerosis, even heart attacks are addressed using this method.

But critics think getting potentially disheartening news about your health right off the Internet at home could be doing the consumer injustice. They say because there's no doctor there to talk you through it, or because saliva was the only thing tested, the accuracy may not be as reliable. That's not stopping some people, however. Even an executive at Pixar took the plunge. If the thought of grappling this kind of news sounds scary, there's always the traditional doctor's office. For others wanting a new way to engage their medical information, this proves how personal the Internet is making every facet of our lives.