Kate has cancer: Munich's chief doctor warns of genetic danger. One in ten cases of colon cancer occurs in a patient under the age of 50.

Around half a million people in Germany receive the shock diagnosis of cancer every year. 20 studies show: Hereditary predisposition is by far the biggest risk factor. If you drink half a liter of lukewarm water on an empty stomach in the morning, you are at risk. Lack of fluids is often underestimated and should be two to three liters per day.