Technically, I think if something happens in 100% of cases that's the mainline and not an exception case that you can analyze/fix. So probably we cannot say it'

Technically, I think if something happens in 100% of cases that's the mainline and not an exception case that you can analyze/fix. So probably we cannot say it's a disease. Now, in order to stop aging you will need to understand and stop all processes that lead to aging. everything we are doing today, in all domains, is trivial compared to understanding biology (even for simpler organisms). The complexity is just mindblowing (google: roche merabolic map poster). It would be probably easier (although this is still far far far out of reach) to create a new body and transfer the brain's content than to stop aging. That should not stop us from trying to understand it though and there may be "low hanging fruits" that may add 1-2-10 years to life. Another thing worth pondering is quality of life. If you could live the same amount of time without most of the decline that comes with old age who wouldn't want to do that?