—Grace HuckinsThis story is part of MIT Technology Review’s How To series, helping you get things done. A brief history of “three-parent babies”This week we heard that eight babies have been born in the UK following an experimental form of IVF that involves DNA from three people. But these eight babies aren’t the first “three-parent” children out there. Over the last decade, several teams have been using variations of this approach to help people have babies. —Jessica HamzelouThis article first appeared in The Checkup, MIT Technology Review’s weekly biotech newsletter.