On October 6, 2020, the sixth day of the National Day holiday, are you still crowded in the major scenic spots to watch the crowd? In a small park by the East River in Shangcheng District of Hangzhou, seven or eight uncles with an average age of more than 60 years old come here to roll the iron early in the morning. These uncles come from various places in Hangzhou. They meet here to exercise every day. Some of them have been exercising for two or three years, and some have been exercising for more than ten years. Their bodies are strong and muscular. “During the national day, we also come to exercise every day, let the beautiful West Lake to foreign tourists,” 69 year old uncle Shen Changren told reporters. “We exercise almost every day. Here, we not only exercise, but also make friends. If we feel happy, we will naturally be good. I hope young people will also exercise. This is the national fitness.”.