Hellow guys, Welcome to my website, and you are watching 34살, 60살, 78살 정신 바짝차릴 나이. 건강하게 살다가 잘 죽는 법 _ 서재걸 박사 | 방송대 | 방통대 | 방송통신대 | 은퇴 | 건강 | 노후 | 노년 | 등. and this vIdeo is uploaded by 방송대 지식+ at 2025-04-17T03:15:09-07:00. We are pramote this video only for entertainment and educational perpose only. So, I hop you like our website.