He did not have much space for himself , which impressed the idea of China 's overpopulation on him at young age .
Zhang Huan grew up with the experience of living in a crowded village area .
Zhang Huan did not have much space for himself , which impressed the idea of China 's overpopulation on Zhang Huan at young age .
Zhang Huan grew up with the experience of living in a crowded village area .