What Causes Mental Illnesses?
Although the exact cause of most mental illnesses is not known, it is becoming clear through research that many of these conditions are caused by a combination of biological, psychological, and environmental factors.
Some mental illnesses have been linked to an abnormal balance of special chemicals in the brain called neurotransmitters. Neurotransmitters help nerve cells in the brain communicate with each other. If these chemicals are out of balance or are not working properly, messages may not make it through the brain correctly, leading to symptoms of mental illness. In addition, defects in or injury to certain areas of the brain have also been linked to some mental conditions.
Other biological factors that may be involved in the development of mental illness include:
Psychological factors that may contribute to mental illness include:
Certain stressors can trigger an illness in a person who is susceptible to mental illness. These stressors include:
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