The geneticist looked at a single drop of his blood and saw information that couldn't be gleaned from a whole vial.

Michael Snyder has an unhealthy preoccupation with his own anatomy. The geneticist from Stanford kept tabs on his own progress toward diabetes. In the current paper, he describes taking 14 blood samples per day for a week, for a grand total of 98 samples. Instead of taking vial after vial from his arm's crook, he employed a new technique he and his team had invented, which involved collecting a single drop of blood via a finger prick. As p....