It’s almost always stress-induced—whether you realize it or not. Obsessing over every little thing you eat or do is, in itself, a form of stress. Personally, I take a pretty laid-back approach to food and exercise. I don’t overthink it—I eat reasonably, check labels when it makes sense, go for walks, and just roll with life. And guess what? I’m healthy. Maybe it’s anecdotal, but I’m the only person I know who never gets sick, has a clean bill of health, and can still bike, play soccer, and snowboard like I did 20 years ago. Sometimes, the secret isn’t another health hack—it’s just not stressing about it.