From the contents: Preface.- Is suicide behavior an unfruitful prevention? Why has the rate in the US not decreased in the last decade? Barriers for the research, prevention, and treatment of suicide behavior. Biological Models of suicide behavior. Neurocognition of suicidal process. Lipids and fatty acids. Biological mechanism of repetitive self-harm and suicide behavior. Glutamine and new pharmacological targets to treat suicide ideation. Sex, gender, and suicide behavior. The role of opiates in pain and suicide behavior. Sleep disorders and suicide behavior. Ecological momentary assessment for monitoring risk of suicide behavior