It is very simple, make a Family Tree and write there along with other personal particulars the cause of deaths of grandparents and other forefathers including heart attack and other heart diseases, stroke or diabetes or cancers.
Explain the children smoking is one of the most important risk factors for these diseases and their death. Whenever they visit their uncle’s or other friend’s family the Family Trees of these families should also be shown to them with all these risk factors. With this I have experienced many good results in Hamburg.

A child understands these dangers very quickly and keeps it in mind for ever. It is simple, costs no money and to have this information are useful to the future generations also.

It is applicable to all unwanted and wanted drugs including alcohol.