Intoxicants such as alcohol, tobacco products, drugs, and similar substances should be stayed away from.

All intoxicating substances are extremely dangerous to your body and mind.  Alcohol destroys liver and brain cells, which do not reproduce themselves.  Tobacco product consumption causes various types of cancers, heart and lung diseases, stoke, diabetes, etc.  Drugs that are taken to get high are slow poison to brains, causing short term as well permanent ability to thing straight.

One day you might reach the old age when you can no longer help anybody.  But until then it’s your human duty to be healthy and fit to be able to help anybody in need of quick help.  However, if you are under the influence of an intoxicant substance, you are in no position to help anybody.  Putting yourself in such state itself is a shame.  Such habits should be given up.