Suicide is undoubtedly a worldwide major challenge for the public health. It is estimated that more than 150,000 persons in Europe die as a result of suicide every year and in several European countries suicide represents the principal cause of death among young people aged 14–25 years. It is true that suicide is a complex (and yet not fully understood) phenomenon and may be determined by the interaction between various factors, such as neurobiology, personal and familiar history, stressful events, sociocultural environment, etc. The suicide is always a plague for the population at risk and one of the most disgraceful events for a human being. Moreover, it implies a lot of pain often shared by the relatives and persons who are close to suicide subjects. Furthermore, it has been widely demonstrated that the loss of a subject due to suicide may be one of the most distressing events that may occur in mental health professionals resulting in several negative consequences, such as burnout, development of psychiatric symptoms and lower quality of life and work productivity. All considered, it is clear that the suicide prevention is a worldwide priority and every effort should be made in order to improve the early recognition of imminent suicide, manage suicidal subjects, and strengthen suicide prevention strategies. In our opinion, the first step of prevention is the improvement of knowledge in the field: this was the aim of this present special issue on Frontiers in Psychiatry. In this special issue, several papers have contributed to the suicide knowledge from several viewpoints and we hope that this will contribute to improve and disseminate knowledge on this topic.

Critical reading for parents, educators, and anyone wanting to understand the tragic epidemic of suicide—”a powerful book [that] will change people's lives—and, doubtless, save a few" (Newsday). The first major book in a quarter century on suicide—and its terrible pull on the young in particular—Night Falls Fast is tragically timely: suicide has become one of the most common killers of Americans between the ages of fifteen and forty-five. From the author of the best-selling memoir, An Unquiet Mind—and an internationally acknowledged authority on depression—Dr. Jamison has also known suicide firsthand: after years of struggling with manic-depression, she tried at age twenty-eight to kill herself. Weaving together a historical and scientific exploration of the subject with personal essays on individual suicides, she brings not only her remarkable compassion and literary skill but also all of her knowledge and research to bear on this devastating problem. This is a book that helps us to understand the suicidal mind, to recognize and come to the aid of those at risk, and to comprehend the profound effects on those left behind.

With recent studies using genetic, epigenetic, and other molecular and neurochemical approaches, a new era has begun in understanding pathophysiology of suicide. Emerging evidence suggests that neurobiological factors are not only critical in providing potential risk factors but also provide a promising approach to develop more effective treatment and prevention strategies. The Neurobiological Basis of Suicide discusses the most recent findings in suicide neurobiology. Psychological, psychosocial, and cultural factors are important in determining the risk factors for suicide; however, they offer weak prediction and can be of little clinical use. Interestingly, cognitive characteristics are different among depressed suicidal and depressed nonsuicidal subjects, and could be involved in the development of suicidal behavior. The characterization of the neurobiological basis of suicide is in delineating the risk factors associated with suicide. The Neurobiological Basis of Suicide focuses on how and why these neurobiological factors are crucial in the pathogenic mechanisms of suicidal behavior and how these findings can be transformed into potential therapeutic applications.

This text brings together spokespersons from several different disciplines who can present their arguments for or against rational suicide as a viable concept and, consequently, a realistic option. The pros and cons of the discussion format bring the readers to search for their beliefs, and the final decision of acceptance or rejection of the concept is left to each individual reader.