Smoking is the Biggest Risk Factor for Cancer

In an epidemiological research study conducted on risk factors for cancer, Professor Parkin from the Centre for Cancer Prevention at the Wolfson Institute of Preventive Medicine in the UK discovered that smoking is the biggest risk factor for cancer, being a part of approximately 19% new cases for the year. Smoking was followed by diet at 9.2%; weight at 5.5%; and alcohol at 4%.