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Our research group has went on several intervention programs which were applied to infants, elementary schooland junior high school students and university sports-club students and also people who suffered disaster ofHanshin-Awaji Great Earthquake in 1995. All intervention programs were performed and are now going on topromote mental and physical health. The current intervention program focuses on the intervention which is basedon a newly constructed series-of-leaflets for promoting sleep health entitled “Three great benefits due to ‘Go toBed Early, Get up Early and Do not Forget Breakfast!”. These leaflets consist of four versions for parents ofsmall children, athletes, women and people who suffered great disasters. In this study, we would like to focus onthe results of three intervention studies to promote the athletes who are the members of succor team of KochiUniversity held in November of 2008 (Takeuchi et al., 2012), 2010 (Wada et al., submitted) and 2011 (Wada etal., unpublished; Harada et al.,. unpublished). All the three kinds of intervention seem to be effective for athletesto change their chronotype into morning-typed one, promote the sleep and mental health and finally improvetheir performance in playing sports.
Harada et al. (Wed,) studied this question.