Imagine spending thousands of dollars on weight-loss medication-only to discover months later that it doesn't work for your body. Frustrating, right? Now, for the first time, a test based on ...

In a way, sequencing DNA is very simple: There's a molecule, you look at it, and you write down what you find. You'd think it would be easy—and, for any one letter in the sequence, it is. The problem ...

Our DNA is made of millions of combinations of the genomes that create the human body. Even the smallest changes in these sequences, or in how they act, can change the functioning of the whole body ...