Nowadays, computers have become part of our daily lives. People use computers to search for information, or simply play computer games. I use my computer twice a week. I frequently use it to download pop songs and movies from the Internet. I often use Facebook to keep in touch with friends who are far away. Sometimes I write something and post it on my blog in order to let others know what is going on in my life. Computers are convenient; however, they do cause serious problems. For example, some teenagers play computer games so often that they ignore their studies. They become addicted to computer games and stop interacting with people, finally forgetting how to function in the real world. In addition, long hours of computer use can result in poor eyesight and other health problems.