Moneyball Medicine

You can wear an Oura ring or a WHOOP armband to tell you how your body is adapting to exercise. A continuous glucose monitor can send your phone information about your blood sugar levels are changing. And during the pandemic, a lot of people bought home pulse oximeters to monitor their blood oxygenation levels. But there’s one part of the body where home health sensors haven’t reached yet, and that’s our brains. They're protected inside our thick skulls, which means it’s pretty hard to measure what’s going on in there. Until recently, the only real instruments available to doctors and neuroscientists were big hospital-based machines like X-Rays, CT-scans, EEGs, and MRIs.But that might finally be changing. Harry's guest this week is Ryan Field, chief technology officer at Kernel. The vision of the L.A.-based company is to develop a consumer device that would work like a pulse oximeter, but for your brain. The first version, Kernel Flow, is shaped like a bicycle helmet, and it contains more than 50 low-power la