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Dr. James Berry advises parents on how to protect their children from addiction. He emphasizes the importance of honest communication about both the risks and the short-term feelings of euphoria that can come from substance use. He encourages open dialogue about addiction, especially if the child has family members who have struggled with addiction, as this can increase their risk. Dr. Berry stresses the need for parents to educate themselves and their children about addiction, making sure they understand the potential lifelong consequences of using substances, even for the first time.