You spit into a tube and send it back to a company. A few weeks later, you'll get back information about yourself and your ethnicity, even possible health risks.
Although it might seem like a great opportunity, the issue of at-home DNA tests might not be as simple as it seems.
Kyle Kuhlman spends countless hours sifting through old family photos and documents -- all in an effort to trace his family history.
"I was always curious. Like who is who? How am I related to that person?" Kuhlman said.
A couple years ago, some of Kuhlman's questions were answered. He took an at-home DNA test through Ancestry.com.
His results weren't exactly what he expected.
"The family story there was, 'Oh, we're Irish.' When I got the DNA results back, it actually had like 6% Irish, but a ton was from the British Isles," Kuhlman said.
Kuhlman is like many people, eager to discover more about their heritage. But there's one thing he wasn't prepared for -- loss of privacy.
"My DNA is out there, and with that, anything that comes about from what they might do could be used through that service," Kuhlman said.
Watch our full coverage Tuesday, Dec. 17 on FOX 17 during the Channel 13 News at Nine.