A high proportion of New York City public school children had a probable mental disorder 6 months after September 11, 2001. The data suggest that there is a relationship between level of exposure to trauma and likelihood of child anxiety/depressive disorders in the community. The results support the need to apply wide-area epidemiological approaches to mental health assessment after any large-scale disaster.

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Childhood anxiety disorders, particularly separation anxiety disorder, are associated with CO(2) hypersensitivity, as defined by symptom reports. Carbon dioxide hypersensitivity is associated with physiological changes similar to those found in panic disorder. These and other data suggest that certain childhood anxiety disorders may share pathophysiological features with adult panic disorder.

The rapid growth of electronic and computer-based communication and information sharing during the past decade has dramatically changed social interactions, especially among teenagers. Cyberbullying has emerged as a new form of bullying and harassment, and it has been shown to possess different ramifications from traditional school-yard bullying. This problem has emerged in nations worldwide. Cyber victims have reported various emotional and behavioral symptoms, along with school-related problems. This paper reviews international cross-sectional studies relating to the definition, prevalence, age, and gender differences inherent in cyberbullying. Psychosocial and risk factors associated with cyberbullying are also addressed. Prevention and intervention strategies for school officials and parents are suggested. Healthcare providers, policy makers, and families must be ever-mindful of the grave dangers cyberbullying poses to youths. Longitudinal studies are warranted to assess the psychological risk factors of cyberbullying.