A mental health disorder characterized by feelings of worry, anxiety, or fear that are strong enough to interfere with one's daily activities. Symptoms include stress that's out of proportion to the impact of the event, inability to set aside a worry, restlessness, hypervigilance, irritability, restlessness, lack of concentration, racing thoughts, etc.

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A disorder in which a person has difficulty recovering after experiencing or witnessing a terrifying event.

The condition may last months or years, with triggers that can bring back memories of the trauma accompanied by intense emotional and physical reactions.

Symptoms may include nightmares or unwanted memories of the trauma, avoidance of situations that bring back memories of the trauma, heightened reactions, anxiety, or depressed mood.

Drug addiction, also called substance use disorder, is a disease that affects a person's brain and behavior and leads to an inability to control the use of a legal or illegal drug or medication. Substances such as alcohol, marijuana and nicotine also are considered drugs. When you're addicted, you may continue using the drug despite the harm it causes.

A mental health disorder characterized by persistently depressed mood or loss of interest in activities, causing significant impairment in daily life. The persistent feeling of sadness or loss of interest that characterizes major depression can lead to a range of behavioral and physical symptoms. These may include changes in sleep, appetite, energy level, concentration, daily behavior, or self-esteem.

Excessive thoughts (obsessions) that lead to repetitive behaviors (compulsions).

Obsessive-compulsive disorder is characterized by unreasonable thoughts and fears (obsessions) that lead to compulsive behaviors.

OCD often centers on themes such as a fear of germs or the need to arrange objects in a specific manner. Symptoms usually begin gradually and vary throughout life.

Behavior can includes agitation, compulsive hoarding, hypervigilance, impulsivity, meaningless repetition of own words, repetitive movements, ritualistic behavior, social isolation, or anxiety, apprehension, guilt, or panic attack, depression, etc.

Eating disorders are serious conditions related to persistent eating behaviors that negatively impact your health, your emotions and your ability to function in important areas of life. The most common eating disorders are anorexia nervosa, bulimia nervosa and binge-eating disorder.

Most eating disorders involve focusing too much on your weight, body shape and food, leading to dangerous eating behaviors. These behaviors can significantly impact your body's ability to get appropriate nutrition

A disorder associated with episodes of mood swings ranging from depressive lows to manic highs.

Manic episodes may include symptoms such as high energy, reduced need for sleep, and loss of touch with reality. Depressive episodes may include symptoms such as low energy, low motivation, and loss of interest in daily activities. Mood episodes last days to months at a time and may also be associated with suicidal thoughts.

A disorder that affects a person's ability to think, feel, and behave clearly. Schizophrenia is characterized by thoughts or experiences that seem out of touch with reality, disorganized speech or behavior, and decreased participation in daily activities. Difficulty with concentration and memory may also be present.

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Personality disorders are deeply ingrained, rigid ways of thinking and behaving that result in impaired relationships with others and often cause distress for the individual who experiences them. A personality disorder is a type of mental disorder in which you have a rigid and unhealthy pattern of thinking, functioning and behaving. A person with a personality disorder has trouble perceiving and relating to situations and people. This causes significant problems and limitations in relationships, social activities, work and school.