THE LIGHTING OF THE ELDERLY CARE FACILITIES CONSIDERING HUMAN CIRCADIAN RHYTHM(<Special Issue>Special Issue of Living Environment for the Elderly Research interest Group)

Abstract

Both quality of nocturnal sleep and daytime arousal level in elderly people are ofter deteriorated and bright light has proven to affect them. Based on the concept of restorin;the normal circadian rhythm by bright light exposure, we introduce BRIGHT-CARE as a methoi to improve their sleep-wake rhythm and effective results of BRIGHT-CARE in three elderb care facilities. In addition, the tendency that it alleviated their sleep-wake disturbances, reduced their abnormal behavior and increased their eating amount is