The gym craze began to spread at the end of the last century, and going to the gym regularly becomes an essential part of Chinese middle class life style now. The boom may look like a sign of great improvement in living standards and a sign of commercial triumph. Today we are going to talk about this newly appeared Gym Craze in China. In order to get an overall picture, we would first take a look at the group of people who are likely to be gym-goers, the reasons for their participation, and some myths in working out at the gym. Firstly, who are likely to be gym-goers? According to survey, the dominant gym-goers are university students and those who go to work wearing suits and ties, or the so-called "white collar", aged under 35. This group of people tends to be energetic and has enough time and money. More importantly, they are keen to adapt to as new life style. Then, why do they go to the gym? The first reason for this may be the growing number of obese people. This may be the most obvious explanation for the rise of the fitness boom. Maybe going to the gym can be explained as the logical consequence of gluttony!