Abstract
“Frailty,” which refers to the borderline between health and the need for nursing care, is a critical concept in super-aging societies. It includes physical, cognitive, mental, and social aspects; therefore, a harmonized mind-body perspective is important. We assumed that the sense of harmony between body and mind, and psychosocial factors are associated with frailty and psychological aspects in young old. We surveyed by the internet up to 500 young old (250 men and 250 women). The results showed that higher senses of subjective health and harmony between body and mind are associated with lower frailty than psychosocial factors. Moreover, compared to psychosocial factors, we confirmed that a higher sense of harmony between body and mind is associated with lower negative emotions, higher ikigai, and higher internal locus of control. These findings suggest that the sense of harmony between body and mind is a critical concept for understanding frailty and psychological well-being in young old.