It always seems it's a fall that ends it, I wonder if she could have made 100 years on the water if she hadn't fell. What an inspiring life!
The lack of movement rather than rich stimulation might remain the issuem I look forward to a study if there hasn't been one yet.
Anyhow Lillian broke an ankle. Went to hospital. And there was some complication. And then another. And 2 weeks later she's passed away, never having gotten out of the hospital.
I think people - especially when you're old - are more like sharks then not. If you don't keep moving nothing good happens.