Some of the genetic triggers for aging are already known and experimentation is underway to learn how to control or slow aging. In experiments with earth worms, altering one gene more than doubled their life span. That gene is related to how well we get nutrition from our food. Part of aging, then, is not being able to get the nutrition you need, even though you are eating properly.
I am guessing sometime in the next 25–40 years there will be big changes in controlling aging (and big ethical challenges).
When I told my wife this, I said, Think how much money I could make in the stock market if I could live to be 150. To which she replied, Think how much you could lose.