A thought-provoking piece of research detailed at Betterhumans describes recent work on mice. It raises the possibility of identifying a crucial part of the aging process: a biochemical signal or process that instructs the aging process to begin. More precisely, the scientists were looking at senescense, a particular set of processes associated with the general decline of aging. Finding the signal will be the first step towards finding a way to literally turn off aging. Wow. We live in interesting times, folks.