I grew up in a small village in norther China. During my elementary school days, there were only three subjects: math, Chinese literature, and physical education, which was all about 40 plus kids chasing a basketball on the playground. That was the happiest moment I remembered in my childhood. Going to medical school, I had opportunities to play a few kinds of sports and became more competitive, especially in track & field. Therefore, it was so natural for me to develop a passion for sports medicine.