<human>:  How can I tell if my adolescent is abusing drugs or alcohol?
<bot>: Talk to your adolescent openly and honestly about their potentially harmful substance use. Ask questions about the substances they may be using, the frequency of their consumption, and any related consequences. Additionally, look for physical and behavioral changes that may be associated with substance abuse, such as changes in sleep or eating habits, bloodshot eyes, changes in friends, or secrecy surrounding activities. If you are concerned, it is important to take action by reaching out to a healthcare professional, such as a psychologist or a substance abuse specialist.