Dr. James Berry advises parents to be actively involved in their children’s lives to recognize potential signs of addiction. Sudden or long-term changes in behavior, such as mood swings, irritability, or withdrawal from activities or friends, can be warning signs. Physical indicators like red eyes, unusual smells, or changes in sleep patterns may also signal a problem. If a child starts lying or hiding things, it could be cause for concern. Open communication and frank discussions about these behaviors are crucial for addressing potential issues early.