Influence of Chewing Force on Mental Stress Release in Elderly People

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we reported mental stress reduction by chewing. however, most of all study of releasing stress by chewing is about young people. it has never been reported that elderly people can release the mental stress by chewing as same as young people. the purpose of study was to clarify the effect of chewing on mental stress release in elderly people using salivary cortisol levels. in conclusion, elderly people cannot release the stress as same as young ages. it should be performed to compare the participants divided into the group of oral condition in more elderly people to clear the better way of chewing for stress release.