It is estimated that about 200 million people who use the Internet computer network around the world. Most people use the Internet to get information or for entertainment. A new study, however, says that almost 6% of Internet users are using it so often that it is seriously harming their lives. The study says these people may find it difficult to stop using the Internet because they have become addicted. Someone who is addicted finds it extremely difficult to stop an activity. According to Mr Greenfield, a psychologist, 30% Internet users say that they use the Internet to escape from problems or emotions. The study also shows that having discussions with strangers in Internet areas called " chat rooms" is one of the most addictive activities.