Not all parts of the brain age the same way. Now, AI can show us exactly where the clock is running fastest. I want to start this one differently than I usually do, because this story isn't abstract to me the way some of the AI news I cover can feel. Someone in my own family is in the early stages of Alzheimer's, and I've spent enough time inside that experience to know exactly how much earlier warning would have meant to us. So when I came across this research out of USC, I