Families afflicted by rare genetic disorders will be the first beneficiaries of genome sequencing. But everyone else will benefit, too, and more than you might imagine. It turns out that conditions any may face--such as heart disease and diabetes--may also be triggered by similarly rare mutations. David Dimmock, a pediatric geneticist at the Medical College of Wisconsin in Milwaukee, says most common diseases are merely a collection of rare diseases that happen to have the same end point. In other words, common conditions are actually rare disorders in disguise, which means that the same methods that will promise to deliver personalized medicine for all. Here, Aldhous discovers this genome sequencing that is delivering a medical revolution that should one day come to all.