David Sinclair· PhD
These signaling proteins, like the DAF-2 one that Cynthia discovered and the sirtuins that we work on, we didn't know what they were doing at first. It was like, "This is crazy. It's got nothing to do with DNA repair and free radicals." But then when we tracked what they were actually doing, it turns out they're speaking to the rest of the cell to keep the cell healthy and alive.