Tan Xingyu is the deputy chief physician of the Department of Respiratory and Critical Care Medicine at a large tertiary hospital in Beijing. She makes weekly visits to the hospital's smoking cessation clinic, where teenage middle school students have begun to be sent by their parents to quit.
In 2018, the smoking rate of people over 15 years old in China was 26.6%. The "China Smoking Health Hazards Report 2020" released by the National Health Commission pointed out that the number of smokers in China exceeded 3 million.