The boy is twelve years old and he is one of the best students in his class

The boy who is one of the best students in his class is twelve years old.

Nick is a 14-year-old school boy. His life is full of exams and studies
on weekdays. He has little free time. He thinks playing computer games is the
best way to make him relax. When he has free time, he sits in front of the
computer. Just like that way, he neither eats nor drinks for several hours.

Last weekend, he played games on the computer again. He was too excited
and didn't want to move. He didn't have anything for six hours. When he had to
go to the bathroom, he found he could not move. He was taken to the hospital.
The doctor told him he should do some more different kinds of activities. In
other words, he needs more exercise and outdoor activities to make him have a
healthy body.
After coming back from the hospital, Nick follows the doctor's advice.
He often plays soccer with his friends. Sometimes he still plays