A mental health disorder characterized by persistently depressed mood or loss of interest in activities, causing significant impairment in daily life.
Anxiety disorder
Bipolar disorder
Dementia
Attention-deficit/hyperactivity disorder
.
Schizophrenia
Obsessive compulsive disorder
Autism
Post traumatic stress disorder
There more!
It some are passed down from your parents or there parents
Others you just acquire such as ptsd with is a disorder that forms from trauma in ones life