of serotonin and decreased brain activity in the areas that mediate depression. Earlier research has shown that Accutane reduces the availability of the neurotransmitter serotonin. Serotonin is also known as the "feel good" hormone. Low levels of serotonin have been linked consistently to many psychiatric symptoms, such as aggression, anxiety disorders, and suicidal ideation. Naturalnews reported about the study here: Suicide Link to Acne Drug Officially Established. Among other side …