If a father passes a mood disorder trait to his children, a son is more likely to have the disorder. If a mother passes a mood disorder trait to her children, a daughter is more likely to have the disorder. They include a mix of genes from both parents. The factors that produce the trait or condition are often both inherited and environmental. Researchers believe that many factors play a role. Or it can happen along with environmental factors, such as unexpected life events or long-lasting stress. Mood disorders may be caused by a chemical imbalance in the brain. Other chemicals in the brain (neurotransmitters) control the brain chemicals that affect mood. Certain chemicals in the brain are responsible for positive moods. What causes mood disorders in teens is not well known. These are depression symptoms from the effects of medicine or other forms of treatment, drug abuse, or exposure to toxins. These include cancer, injuries, infections, and chronic illnesses.

Many conditions can trigger symptoms of depression. Mood disorder caused by a health problem.

This type causes depressive symptoms, grouchiness, and tension before a menstrual period. He or she has a hard time controlling behavior. A teen with this type has ongoing grouchiness. This type causes a mix of manic episodes and depressed periods, or times of flat or dulled emotional response.ĭisruptive mood dysregulation disorder.

A teen with this type has a long-lasting, low-grade, depressed or irritable mood for at least 1 year.īipolar disorder. Persistent depressive disorder (dysthymia). He or she may also lose interest or pleasure in normal activities. A teen with this type has a depressed or irritable mood, along with other signs, for at least 2 weeks. They are sometimes called affective disorders. Mood disorders are a group of mental health problems. Mood Disorders in Teens What are mood disorders in teens?

Flat affect depression