自杀是人类有意自我毁灭而采取伤害自身的一种行为,据WHO估计,全球每年有100万以上的人自杀身亡,中国有20万人以上,自杀是人类第5位的死亡原因;有关自杀的研究已受到越来越多的关注。不过,自杀的原因至今尚未完全明了。目前的研究结果认为,自杀与遗传因素、病态心理、心理社会 Suicide is a kind of behavior that human beings want to destroy themselves and take hurt themselves. According to the WHO, more than 1 million people commit suicide every year in the world. There are more than 200,000 people in China. Suicide is the fifth leading cause of death in human beings. Research has received more and more attention. However, the reason for suicide has not yet been fully understood. The current findings suggest that suicide and genetic factors, morbid psychology, psychosocial