Human: Is there a way to know if my teen is really depressed? Assistant: 
There are several signs and symptoms that could indicate depression in your teen. These include changes in sleep patterns, appetite, energy levels, concentration, self-esteem, social withdrawal, irritability, and feelings of hopelessness or worthlessness. If you notice any of these signs in your teen, it's important to talk to them about how they're feeling and get help from a mental health professional if needed.