The dawn of dairy farming in Europe occurred thousands of years before most people evolved the ability to drink milk as adults without becoming ill. Now researchers think they know why: lactose ...

Young children who retain the ability to digest milk benefit from a big increase in available calories, and this may explain why mutations that allow this spread rapidly in some human populations ...

Based on the remnants left on pottery fragments, researchers can say northern Europeans have been drinking milk for 9,000 years. Seksan Mongkhonkhamsao via Getty Images Just 5,000 years ago, even ...

ITHACA, N.Y. -- Got milk? Many people couldn't care less because they can't digest it. A new Cornell University study finds that it is primarily people whose ancestors came from places where dairy ...