We don’t always hear the clock ticking when we’re online and young people are no exception. Between doing research for homework, talking with friends, updating social networking pages and playing games, it’s easy to see how kids and teens might lose track of time. Excessive Internet use, however, can negatively affect young people’s school work, health and social lives. Unfortunately, adults don’t usually discover this problem until it’s become serious.
It’s tempting for parents to act authoritatively and lay down the law on the number of hours their kids can spend on the computer. But in order to effectively address excessive use, there needs to be an active, voluntary commitment on the part of the young person to control their behaviour. Otherwise, kids will just find ways to work around their parents – and be left to their own devices once they’re old enough to leave the house.
Sexting is most likely to have negative consequences when the person sending the sext has been pressured into doing it.
Typically, youth sexting occurs in three contexts: in lieu of sexual activity for younger adolescents who are not yet physically sexually active; to show interest in someone a teen would like to date; and, for sexually active youth, as proof of trust and intimacy.
There is little evidence that sending sexts is by itself a risky act: for example, one study done with American university students found that many reported positive experiences. 
Studies about the gendered aspects of sexting consistently show that while little criticism is attached to boys who send sexts, girls who do so are perceived as being sexually immoral: girls who sext are seen as using their sexuality to get public attention, while boys – even if their sexts become public – are assumed to be doing it only to get the attention of one prospective partner. 
Parents, schools and law enforcement agencies are grappling with how best to respond to this issue. In the United States, sexting amongst youth has resulted in teens facing child pornography charges.
Media and communications technology play an important role in a student’s health and physical education, for better or for worse. The new Ontario Health and Physical Education curriculum provides a spring board to start discussions related to health and media literacy.