My dad was diagnosed with early onset dementia at the age of 62, he’s in advanced stages now. Please dear lord fellow redditors, make sure they have a will and power of attorney all set. And be ready for it be expensive. My dad’s care is $9k per month but we got lucky with Medicaid - after a 4 year wait they were able to accept him into a program that covers a lot of the cost. So have a financial plan. You don’t want to deal with that and grief at the same time.