I recently posted this on the group for caregivers for dementia patients, but it's good to help with remaining independent no matter your circumstances. I care for my husband and the thing with Gene Hackman and his wife made me realize that if some emergency happened to me (stroke, heart attack, bad fall, etc.), he wouldn't know what to do. I read about this site that lets you set up a time to check in each day and, if you don't, they notify the emergency contacts you give them. There's a free plan and a paid one. I think it's a great thing even if you're twenty years old and healthy, but living alone. For seniors, it's a gotta-have in my opinion, along with things like smart watches, etc.
https://www.snugsafe.com/