Wenxi Chen received a B.S. degree and an M.S. degree in biomedical electronics from the Department of Biomedical Engineering, Zhejiang University, China, in 1983 and 1986, respectively. He received a Ph.D. degree in biomedical instrumentation from the Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University, Japan, in 2001. He is currently a professor in the Biomedical Information Engineering Laboratory and Head of the Division of Information Systems at the University of Aizu. He is a member of the Japanese Society for Medical and Biological Engineering and a member of IEEE-EMBS. His current research interests focus on developing various modalities to monitor diverse vital signs under daily environmental conditions and on performing comprehensive interpretations of multifarious long-term data to reveal statistical links among diseases, healthy aging, and lifestyle.