Japan is facing a dementia crisis – can technology help?

Suranjana TewariAsia Business Correspondent, TokyoBBCScientists at Waseda University in Tokyo are developing caregiving robotsLast year, more than 18,000 older people living with dementia left their homes and wandered off in Japan. Almost 500 were later found dead.Police say such cases have doubled since 2012. Elderly people aged 65 and over now make up nearly 30% of Japan's population - the second-highest…