Cao Xuemei, 76, gets up at 6:30 am every day to dress and feed her 79-year-old husband, Cui Xingli, who has suffered a series of strokes and was diagnosed with Alzheimer's disease five years ago.

Everything's typical for the family of an Alzheimer's patient, until 8:30 am, when the couple take their places in front of a camera at home in Wuhan, Hubei province, to greet tens of thousands of fans in their livestreaming community.

With assistance from their granddaughter, Cao started broadcasting with her husband on their channel, Kaixin Nainai, or Happy Grandma, in July 2016. She hoped the entertainment would help revive her husband's mental functions.