Most people who are worried about living longer have experienced trauma, pain, and illness. It is not just a matter of preventing normal aging. You need to be able to fully heal from traumatic injury and illness. You need to be able to truly diagnose and correct the sources of chronic pain. And you need to be able to heal emotionally as well as physically.

There are terrible experiences we can have as human beings. I'm going through one myself right now, as I work to diagnose some terrible chronic pains, while my wife is in rehab care after a pretty bad accident that has left her unable to move without help.

If we can heal 100% from these experiences, sure, longevity sounds good. But under our current medical knowledge, that is a big "If".