What causes people to develop OCD?
Doctors and scientists don’t know exactly what causes OCD, although recent research has brought better understanding about OCD and what causes it. Before that, OCD was thought to be difficult to treat, but now it’s a lot easier. Experts believe OCD is related to levels of a normal chemical in the brain called serotonin. When the proper flow of serotonin is blocked, the brain’s “alarm system” overreacts and misinterprets information. Danger messages are mistakenly triggered like “false alarms.” Instead of the brain filtering out these unnecessary thoughts, the mind dwells on them — and the person experiences unrealistic fear and doubt. Evidence is strong that OCD tends to run in families. Many people with OCD have one or more family members who also have it or other anxiety disorders influenced by the brain’s serotonin levels. Because of this, scientists have come to believe that the tendency (or predisposition) for someone to develop the serotonin imbalance that causes OCD can be inher
