How would you feel about extending your lifespan expectancy by 14 years? According to the EPIC study it is relatively easy. It's enough that you won't smoke, you will exercise regularly, you will drink only moderate amounts of alcohol and you will eat five servings of fruit and vegetables a day.
If you would like to know how this study was done, read this article: Combined Impact of Health Behaviours and Mortality in Men and Women: The EPIC-Norfolk Prospective Population Study