Chewing, Stress-Related Diseases, and Brain Function

1Seijoh University Graduate School of Health Care Studies, 2-172 Fukinodai, Tokai, Aichi 476-8588, Japan 2Department of Anatomy, Gifu University Graduate School of Medicine, 1-1 Yanaido, Gifu 501-1194, Japan 3Center for Brain and Cognitive Sciences and Department of Psychology, Peking University, Beijing 100871, China 4Department of Oral and Maxillofacial Surgery, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou 310003, China 5Department of Neurology, University of South Alabama, Mobile, AL 36688, USA