Pretty cool, although life extension is a risky path to take, as individuals exist for longer, requiring more resources to keep them alive, a very dangerous game to play in a world that's already struggling to sustain it's existing population. But it's still good good to see that they're using it to find fixes for those afflictions that plague the elderly, as quality is more or less better than quantity 9 times out of 10, especially in terms of the life experience.
If you want my honest opinion, life extension is a science born from the fear of death, as our species has yet to fully discover whether there's an eternal nonexistence ahead of us when we die, or if there's some kind of continuation. Instead of helping us overcome our fear of the end, life extension simply delays the inevitable, coddling us against the eternal darkness that likely awaits all living things at the end of their journey.
What we should be doing is researching whether or not there's such a thing as an afterlife, and if we can't find one after our best efforts fail us, we work towards inventing one, a place where the consciousness can exist forever without fear of oblivion, and without any significant requirements to maintain it.
But back on topic, it's nice to know that there are people who want to help improve the quality and overall length of human life, even if it requires more resources.
We'll never know if there is an after life, never.