There are three main categories of mental health disorders that caregivers may encounter: anxiety disorders, schizophrenia, and mood disorders. Anxiety disorders involve excessive and uncontrollable worry that makes daily life difficult. Schizophrenia is a severe disorder that typically emerges in late teens to thirties and can cause delusions, hallucinations, and paranoia. Mood disorders include bipolar disorder and depression, with depression commonly affecting adults and older adults and often being treatable through medication.