Do what you can to prevent cancer:  

Scientists estimate that about a third of the most common cancers could be prevented by eating a healthy diet, being physically active and maintaining a healthy weight. NOTE: Tobacco use is a separate risk factor that is itself responsible for one-third of all cancer deaths. - from American Institute for Cancer Research. Check out their website for lots of sensible and easy ways to prevent cancer and tips on what to give out for Halloween. Click here to see more info from AICR.