[QuarianRex]

There are other interesting means of life extension. Though you usually have to start young. For instance, if you deprive an mammal of carbohydrates for the first six (human equivalent) years of life you double their lifespan. Mind you, this has to be a complete lack of carbs, even one or two periods of binging during childhood completely ruins the effect.

I have often toyed with the idea of enforcing this regimine upon my own offspring (though they do not yet exist). There is something attractive about thought of giving ones children the capacity to be a little more human than human.