Special Issue on Scientific Knowledge for Health

Abstract

　Japanese government has been interested in “Healthy life expectancy” since World Health Organization (WHO) declared in 2000. Japanese healthy life expectancy is increasing year by year although there is a gap between healthy life expectancy and the life expectancy. Japanese government (Japan sports agency and the department of health, labor and welfare) recommends seriously the sport and exercise to elderly people for the prevention of health frail. Because the frail elderly people have a high risk which lead to some health problem including mental health or death, and which use a lot of the medical expenses. The technology has not only a potential to contribute to make the frail elderly people get back to the health, but also a potential to improve the QOL of elderly people.