First, I have not submitted my DNA and haven't researched it, but Chasing Hawk's warning with links are valid.

For the skeptics: read The Immortal Life of Henrietta Lack by Rebecca Skloot. It was on the NYTimes Bestseller List. It is not fiction or an easy read in places, but extremely well researched. It has to do with a lady signing forms to get medical treatment. The result was that her cells were used to create breakthroughs in diseases. No one else's cells worked. They named the cells after her: He La. So big deal, neither she nor the family got any remuneration. None. Her cells led to cancer research breakthroughs, polio vaccine, treatments for AIDS and more. Google her. Then think about someone owning your DNA before submitting it to them and letting them "own" it. Not everything is about money, but if you read the story, it puts it all into a different perspective.
Tartan-sorry missed your comment before posting.

The thing is; how do you know what they are saying is actually your past. What I know is that I'm a lot indian, some german, Scottish, etc. I tell everyone that I'm Heinze 57, a little of everything.

A friend of mine said she had a DNA test done on her dog. I asked her, would they notice if you sent in human DNA instead of animal. I guess you'd know if they were fakes.

knowing more about my past isn't going to change my future, I know enough to know a lot of my medical history and have shared that with my grandkids so I really don't care about anything else.

48 Hours just did a show on this. the police were searching for a killer and had DNA, it came up under this guy but it wasn't his, but it showed it was a family member, except for the fact that no family members lived in that area. It took a few years of investigative work where this guy's family was put under the telescope. After that, Ancestry said they have since locked down their data bases and wouldn't share the info with anyone. Hopefully this is true. But computers get hacked all of the time. I agree 'ccthomas' medical history is scary but what if you aren't given the right info, it could be even scarier if you though there was a history of bad medical stuff to worry about, or if you'd been lead to believe there were no problems but there were. Good luck to your family.

So true, Judy. Knowing medical history is sort of a sketchy thing. It might help you or it might just freak you out about something that is never going to happen.