 um, engage a bit more and, you know, bring back some of that, uh, puppy energy perhaps. So you're, you're getting, you're circling around FDA trials and approval process right now. We can't get super, super deep into the biology, probably Celine, but, but, but give me an idea of what the mechanism is here, what the biology is of the drugs that you're working on and how they might work maybe to give more vitality or even extend life.