What strategies can a person practice to prevent the use of harmful substances?

Confide in a proven trusted adult

Be a positive role model

Explanation:

There are substances that can affect you in such a way that it can cause lung cancer, fibrosis, cancer, brain and many other health hazards.

Many strategies can be used in order to avoid the use of harmful substances. Avoid using them at work or home. Keep them away from a child’s reach, and a trusted adult is present that can act responsibly, avoid smoking since it also contains several harmful substances like nicotine, tobacco  

Have trusted role models in there lives and find a passion they can follow to avoid those things. If there passion is on the line they are more likely to think before doing irrational things!

answer///cannot be totally predicted;