This document provides information about WSDEDI, an organization that promotes Cognitive Enhancement Gymnastics (CEG) to improve quality of life, happiness, and cognitive and physical functions while preventing dementia. CEG involves gentle exercises like stretching, walking, and coordination movements. The goal is to pursue happiness through gymnastics without dementia. WSDEDI has contracts to promote CEG on Naver and KBS and holds instructor courses and international symposiums on CEG.