Getting enough exercise is definitely indispensable for the people who lives in the urban areas in a long time. The high speed life's tempo and the narrow living space tend to impel people ignoring sports and entertainments which protect them far from various diseases and becoming fat. Nowadays, sixteen percent of children used to play computer and TV games, failing to recognize the fact that they will gradually become susceptible to illness. It is obvious that their parents who never do exercise seldom take their son's fitness into consideration, which is quite dangerous.

My little brother, 14-year-old, who has a relish for playing the computer game. Facing the screen without rest day by day, he's gotten serious short sight. If he keeping not to be conscious the fitness, his vision is likely to be more poor.