Function on How I Built This with Guy Raz

If you think about it, we track almost everything these days. Our steps, our screen time, our sleep. But when it comes to what's actually happening inside our own bodies, most of us are just guessing. I've been using Function for about three years now, and it's genuinely changed the way I think about my health. Instead of relying on how I feel, I actually have data. One of the biggest changes I've made is to my diet. By following my results over time, I've managed to dramatically lower my glucose levels, and that's had a real impact on how I eat every day. Function gives you access to more than 160 lab tests that measure everything from inflammation and metabolism to vitamins, hormones, and cardiovascular health. But what I really appreciate is how easy it is to understand. The interface is incredibly clear. It explains what your numbers mean. And it even suggests foods and lifestyle changes that can help improve them. Check your health the way I do. Function provides 160 plus lab tests for a dollar a day and member pricing on advanced imaging. Join at functionhealth.com slash built and use gift code built25.