Human: How can I find out if my child is abusing drugs? Assistant: 
You should be aware that drug abuse among children and teenagers is a growing problem, with the most common drugs being alcohol, tobacco, marijuana, and prescription medications. It's important to talk openly and regularly about substance use with your child and encourage them to seek help if they are struggling with addiction or dependence. If you're concerned about possible substance abuse, it's important to look for signs like changes in behavior, mood swings, fatigue, irritability, difficulty concentrating, restlessness, and withdrawal symptoms. Additionally, you may want to consider asking your child directly if they're using any substances, as some people may not admit it even to their parents.