Dr. Hong graduated from Seoul National University College of Medicine in South Korea and obtained three specialty board certificates of family medicine, preventive medicine, and occupational & environment medicine. Currently, he is the chair of the Department of Preventive Medicine at Seoul National University College of Medicine. Dr. Hong has published more than 250 research articles and commentaries in the international academic journals since 1996. Currently, he is co-chairing a book writing “Atmospheric Pollution in the Asia Pacific: Science-based Solutions” with the support of the UN Environment. Dr. Hong is a member of the Korean Academy of Medical Sciences, the Korean Academy of Science and Technology, and a policy advisor to the World Health Organization. Dr. Hong published a book entitled The Origin of Diseases (Nova Science Pub Inc) in 2015, which provides a novel perspective on the way of understanding why we have diseases. Now he is trying to elaborate how we conquer diseases and address the challenging issues we will face in the future.