Comment by chickenzzzzu

I think it's more about quality of life rather than extending it - enjoying outdoor activities (skiing is a blast!), enjoying looking good and being in shape, able to do all my own yard work and snow shovelling etc without it being an effort.

Now, while I choose to do things that I enjoy (and the skiing is purely for enjoyment, even though it requires a lot of energy), I will say that part of the motivation for wanting to keep in good shape is seeing what happened to my Dad who had an office job (professor) and didn't exercise at all other than a bit of walking to the grocery store etc, and in his old age had all sorts of pinched nerve and mobility issues due to lack of muscle tone and strength, and realized it was too late to do anything about it.