Badminton and jogging can be my favorite when I was a child. You know, at that time, these two kinds of activities were nearly free of charge, I didn't have to pay for them. And I could do this kind of sport in many places, like on the playground for example. In the meantime, I didn't have worry too much about the climate change, in sunny days or rainy days, the bad weather wouldn't stop me. That is it.