And they usually do not have any problems as a result of their substance use.

The rate of substance use is known to be particularly high in this group.

So start early to help your child learn the skills needed to avoid substance use.

If there is any substance use, to what degree, and for how long?

For example, environmental stress has been shown to increase the risk of substance use.

By age 9, your child will have opinions about substance use.

The natural history of substance use as a guide to setting drug policy.

By age 9, your child will have established an attitude toward substance use.

But substance use still remains a leading cause of injury and death in young people.

And talk to your teen right away if you see signs of substance use.