Ariana Grande’s grandmother Marjorie Grande, known as “Nonna,” died at 99 years old on Tuesday. “We are devastated to share ...

“[A killer whale grandmother’s] greater knowledge and ... Ranging from polar regions to the Equator, orcas live in close-knit family groups of up 40 individuals. The predators work together ...

I knew something was off when she would repeat questions, but how can you tell what's "normal aging" and what's a potential sign of dementia?