Very possible.

My grandpa (father's side) passed away at 106 y.o. (born in 1899). Up to 105 he could function normally, with full mobility and good mental capacity. It was only for a few months that he was bedridden and he passed away peacefully in his sleep. Lived in the countryside for most of his life. We took him with us to the city during his later years to be close to him.

The way I see it, body and mind need regular stimulation/exercise. This means living an active life, doing training/gym/running for the body (helps the mind too), and being active/creative/productive for the mind. If you just sit idle watching TV all day (many old people end up like this), everything will soon begin to shut down. So, my advice is to stay healthy, fit and active.

And don't overdo it with the Elijah Craig!