DNA ancestry tests promise to reveal where your family came from - but the science behind them is far more complicated than ...

What started as a routine DNA test turned into one of the strangest medical mysteries ever recorded. This video explores the rare condition known as chimerism, where a person can carry two completely ...

See more of our trusted coverage when you search. Prefer Newsweek on Google to see more of our trusted coverage when you search. Jack Steele had come to feel like pretty much everyone in his family ...

When we first wrote this article, it compared 23andMe and Ancestry. Since then, 23andMe has experienced a data breach, a subsequent lawsuit, board members' resignations and layoffs amidst financial ...