For decades now, it’s been fairly well established that once you turn 40 you should start paying more attention to your body. That’s when women are supposed to start getting mammograms and men are supposed to start paying a bit more attention to their prostates. Over the next decade, you’ll start getting colonoscopies, and from then on out, it feels like a gradual march of doctor’s appointments and tests until your body collapses sometime in your seventies or eighties.
But what if modern medicine has the timeline all wrong? What if we’re testing some middle-aged people unnecessarily for diseases they’ll most likely never get, while blindly ignoring twentysomethings who might