Starting in January with the launch of the ambitious Precision Medicine Initiative in the United States, 2015 finished with a heated debate around the appropriate use of technology that allows...

New research suggests that it took a long time before Europeans could actually benefit from consuming milk. Looking at DNA samples from the remains for more than 100 individuals who lived in Eurasia from 3,000 to 5,000 years ago, researchers in Norway found that it took a surprisingly long time before Europeans could tolerate milk.

Generally when you think about what separates humans from other species, features like upright walking, large brains and language come to mind. But diet has actually played an enormous role...