The world is changing.the change is affecting we young mostly. the internet is contibuting to this change.We are spending time on internet for days so internet putting our daily activity.For example we are sporting to be healty but we prefer Facebook,Twitter etc. to sporting.Sport is useful for teenagers.People who engages in sports concentrates,controls himself/herself etc. .People who engages in sports increase self-confidence. Actually sport causes the secretion of the hormone of happiness.we are aware that is false but we are living according to the conditions that the change brought.