The largest health study ever conducted in Germany called the National Cohort started on Monday, with researchers hoping the 28-year long investigation will shed new light into the risk factors of humanity's most prevalent diseases.
Germany is launching a huge health survey to produce evidence-based information about the effects of diet, lifestyle and other factors such as smoking or alcohol on the big killers - cancer, heart disease, strokes and diabetes.
A kind of insulin currently thought to be being taken by around 500,000 German diabetics has been put under suspicion of increasing the risk of cancer by three new studies.