A new study in the Journal of School Health reveals that cyberbullying is common among teens who are frequent internet users, with 72 percent of respondents reporting at least one incident during the past year.

"Bullies, once thought to be insecure attention seekers, more often are some of the most popular kids in school," says Worthington. “In many cases they have heightened social skills and know how to use their personality to get others to go along with their behavior.’’

A shove, a taunt or name-calling on the playground or in the hall, away from the eyesight, earshot and authority of the teacher – childhood bullying can involve physical contact, spreading rumors and other negative behaviors committed over and over again to intimidate, humiliate and isolate the receiver of the behavior.

Researchers at Yale School of Medicine have found signs of an apparent connection between bullying, being bullied and suicide in children, according to a new review of studies from 13 countries published in the International Journal of Adolescent Medicine and Health.

Ontario’s youth are experiencing a different kind of high -- approximately seven percent (an estimated 79,000 students in grades 7 to 12) report participating in a thrill-seeking activity called the “choking game”, which involves self-asphyxiation or having been choked by someone else on purpose.

Schools’ current focus on bullying prevention may be masking the serious and underestimated health consequences of sexual harassment, according to James Gruber from the University of Michigan-Dearborn and Susan Fineran from the University of Southern Maine in the US.

Spreading rumors and gossiping may not cause bruises or black eyes, but the psychological consequences of this social type of bullying could linger into early adulthood, a new University of Florida study shows.

Students who bully others tend to have difficulties with other relationships, such as those with friends and parents. Targeting those relationships, as well as the problems children who bully have with aggression and morality, may offer ideas for intervention and prevention.

In workplaces where nurses are bullied, the quality of patient care declines, the health of nurses suffers, and the retention of quality nurses becomes difficult. A new article published in the Journal of Obstetric, Gynecologic, & Neonatal Nursing reviews the psychological and social issues related to bullying in the workplace and strategies for creating a respectful work environment.

A University of Denver study shows a curriculum-based bullying prevention program reduced incidents of bullying by 20 percent, twice as much as in the study control group.

As students prepare to return to school ,a Queensland University of Technology study had found nearly all teens will experience some form of mobile phone bullying by the time they graduate, and boys are more likely to be exposed.

It happens in school, at work, physically, verbally, even by email and text - now researchers at The University of Nottingham say there's no escape in the virtual world.