For what it's worth, here's a bit the Huffington Post did on her in 2011:
On taking care of herself:
"I do definitely look after myself, much more than I used to," she says in a girlish, sing-song voice that would seem pure parody were it not for its occasional Californian inflections. "After a lotta years of smoking, I quit, hopefully forever, four years ago. And it was not just for the voice that I quit. It was time. And I do exercise. Not a lot. I discovered yoga."