My Grandpa

I just found out that my grandpa has dementia. It came out of nowhere. One minute he'll make sense and have a coherent conversation, and the next minute he's talking about something else. He's been reliving his war days, and he talks about random things that happened 50-60 years ago. It's kind of scary. My grandma is surprisingly doing ok with all of it. The doctors think that he may not make it past the year. I know I'm praying for him, and I hope everyone else will do the same. Thanks!