Dr. Cheng Kai, associate professor of Beijing University of Chinese Medicine, master tutor, secretary general of Acupoint Professional Committee of Chinese Acupuncture Association, member of Health Professional Committee of Chinese Medical Doctor Association, director of clinical branch of Beijing Acupuncture Association, head of scientific research project of state administration of traditional chinese medicine and Ministry of Education, winner of 2007 new century talent training plan of Ministry of Education, expert of Health Education Institute of China Center for Disease Control and Prevention, "Double Hundred National Health Lecture", visiting professor of Ganlong.com Health Channel, and "Dacheng Chinese Medicine" chain. He is good at treating various indications of acupuncture, especially TCM acupuncture for health preservation. TCM acupuncture is good at treating a series of symptoms caused by endocrine disorders, such as headache, insomnia, facial acne, irregular menstruation, dysmenorrhea, obesity and so on. He has published more than 20 monographs, and has been invited to give large-scale series lectures on TCM health care in Xinhua News Agency, China Insurance Regulatory Commission, Ministry of Foreign Affairs, Bank of China, boutique newspaper and Anhui Publishing Group.