Back in 1950, the now famous and knighted epidemiologist, Richard Doll first identified a link between lung cancer and smoking habits. In a study conducted by Doll and the statistician, Austin Bradford Hill, a direct link was revealed - the risk of developing lung cancer increases in proportion to the amount of cigarettes smoked.
It wasn’t until some years later that a mechanism for Doll’s observations was identified and the link between smoking and lung cancer became simply irrefutable. But even before this research, Doll himself gave up the cancer-sticks and people were advised to stop smoking.
Fast forward just over fifty years to 2006 when a survey of the dietary habits of 80,000 people covering an eight-year period, revealed a potential link between diets