Meet Richard Dawson. He is a 28-year-old digital marketer living in Worthing, England.
Dawson told BuzzFeed News he lives with his 95-year-old grandmother Winifred Lowe, his grandfather, and his brother. He cares for Lowe, who has Alzheimer's. "She has good and bad days," he said. "She can get very confused and upset, or sometimes angry."
Dawson says the family borrow a 9-month-old dachshund called Orla, who has been visiting twice a week for about a month now. Whenever Orla comes round, Lowe is "constantly smiling and playing and doesn't worry about not remembering things", Dawson said.
"It's the same when my brother brings my 1-year-old nephew over," he added. "She plays with him for hours and is fine."