A picture shows Nao's robot Zora before its presentation on June 13, 2016 at the CHR Citadel hospital centers in Liege. - The robot Nao is used as tool of support in the pediatric and geriatric services. It helps the children to understand and to accept more positively the surgical operations and livens up days. It accompanies the elderly in their exercises of gymnastics and leads activities which help to fight against the cognitive decline. (Photo by JOHN THYS / AFP) (Photo credit should read JOHN THYS/AFP/Getty Images)
