How to increase the number of check-in days for health science popularization in China?

Complete the task. It is a task to increase the number of days of staying in health science in China. Doing tasks is the effective data for the popularization of health science in China. Healthy China is a TV program produced by CCTV, which broadcasts the latest progress in the field of medical science and technology at home and abroad from an objective, fair, professional and authoritative perspective.