https://atlantak.com/who-2050%eb%85%84%ec%97%94-%ec%b9%98%eb%a7%a4%ed%99%98%ec%9e%90-%ec%a7%80%ea%b8%88%ec%9d%98-3%eb%b0%b0/
WHO "2050년엔 치매환자 지금의 3배"