A study has claimed that a lifestyle counselling program may reduce the risk of certain types of cancer. A 5-year healthy lifestyle counselling program for adult men was linked with a reduced risk of developing cancer related to overweight, diet and smoking over 25 years. The intervention did not reduce the overall cancer risk in the very long term. The study is a 43-year follow-up of the Oslo diet and antismoking study, which recruited men at high risk for cardiovascular disease in 1972-73. Previous research revealed that the counselling intervention had a clear benefit for reducing cardiovascular disease risk in these men.