[ekianjo]

> That there is no real mention of them when talking about prolonging life makes me shake my head - living at 200 with destroyed joints and a mind which is failing due to Dementia or alzheimers doesn't sound like much fun to me.

Indeed, cartilages and joints get damaged because of prolonged usage, and not just aging. If we were to live much longer, we would have to also tackle how to make such factors less a problem to maintain an active lifestyle beyond age 100.