Cyberbullying is the use of technology to harass, threaten, embarrass, or target another person.

Sometimes, online bullying, like other kinds of bullying, can lead to serious long-lasting problems. The stress of being in a constant state of upset or fear can lead to problems with mood, energy level, sleep, and appetite. It also can make someone feel jumpy, anxious, or sad. If someone is already depressed or anxious, cyberbullying can make things much worse.

It's not just the person being bullied who gets hurt. The punishment for cyberbullies can be serious. More and more schools and after-school programs are creating systems to respond to cyberbullying. Schools may dismiss bullies from sports teams or suspend them from school. Some types of cyberbullying may violate school codes or even break anti-discrimination or sexual harassment laws. So a bully may face serious legal trouble.

Why would someone be a cyberbully? There are probably as many reasons as there are bullies themselves.

Sometimes, what seems like online harassment may be accidental. The impersonal nature of text messages, posts, and other ways of communicating online means it can be hard to figure out if someone is joking or not.

Most people know when they're being bullied, though, because bullying involves repeated insults or threats. The people doing the bullying know they've crossed a line, too. It's not a one-off joke or insult —it's constant harassment and threats that go beyond typical fun teasing or a nasty comment made in anger.

If you know of a friend who is acting as a cyberbully, take him or her aside and talk about it. Without putting your friend down, stand up for your own principles: Let the bully know it's not OK.

Explain to your friend that bullying can have serious consequences: for the bully, for those being bullied, and even for bystanders like you and your friends.

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