This continuing series presents original research results on the leading edge of psychology. This book reviews research on social anxiety disorder comorbid with depression; potential blood tests for mental disorders; affective-emotional perspectives for chronic pain management; the colour of sexuality; frequency and intensity of fears by age and gender among Mexican adolescents and young adults; the genetics of late life depression; executive functioning in borderline personality disorder with and without self-harming behaviours and the risk factors and prevention methods for suicide.