On 30th July, Henan University Biweekly BioMed Seminar (HU-BBS) was held in meeting room B201, School of Life Sciences, who organized this 21st seminar in which Xu Xiaodong, a professor of School of Life Sciences delivered a keynote report titled Biological Clock and Adaptation to Environmental Change. Over 40 experts and scholars, who were from biology, basic medicine, pharmacy, mathematics, materials science, computer science and technology were present at the seminar. A branch meeting place was in the First Affiliated Hospital of Henan University where nearly 20 young doctors from neurology department, who engaged in clinical research, watched the live-streaming report and discussed the related issues via Tencent Meeting, an online platform.