Department of Clinical Nursing;
Kochi Medical School;
Kochi University;
Kochi;
Japan;
Faculty of Health Sciences;
Department of Rehabilitation;
Hiroshima Cosmopolitan University;
Hiroshima;
Japan;
Faculty of Nursing;
Prince of Songkla University;
Hat Yai;
Thailand;
Department of Psychiatry;
Fujita Health University;
Aichi;
Japan;
Institute of Biomedical Sciences;
Graduate School;
Tokushima University;
Tokushima;
Japan;
Healthy Aging; Autonomic Nervous Activities; Heart Rate Variability; Sleep Status; WELL-BEING;