The Internet is like a network of networks where any computer or mobile phone can link up to information stored within it.IT’s making the world smaller by bringing people together. People get everything from internet. Online shopping, online chatting, online banking etc. Everything can be gained using internet anywhere at any time.but it also have some downsides, like causing people health problems for example, poor eye-sight, back ache or migraines. Today’s teenagers usually prefer to spend their time on the internet rather than to participating in other physical activities, which causing them to have a weaker physical health.