Biological/medical factors.Medical studies found that those who commit suicide, about 9 in 10 are successful illnesses through psychotherapy, either during the suicide with the cause was depression and alcohol, even though most people understand how sad mood and alcohol seems to be caused by psychological and social environment, but from that sad emotions that have severe mental pain, or joint pain, laugh. There is genetic and part of the reason scientists also detected the chemical in the brain changes of depression, which refers to a biological process that is related to the occurrence of depression, and depression is the cause of about 50 per cent of suicide.
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