Is lactose intolerance a promotional only Bluff?

Lactose-free milk, lactose-free cheese. Products without milk sugar as hard. And will be appropriately advertised. But what is behind lactose intolerance and, above all, Relates to you really, so many people, as it seems? Or not is much more of a fad?

What is questions”. Understand.”?

Every week there are new, exciting topics in science. But understand you can a little. Except Christoph Koch, head of the Science Department at stern. On behalf of all the idea of star-Reporter Thilo Mischke-free surveyed his colleagues. To current, but also the fundamental knowledge of science. And get, hopefully, an understandable response. Very true to the name of the magazine: questions. Understand.