Technology

There's the thing though. Our bodies don't really know what's good for them with perfect accuracy. They evolved to survive in an environment of extreme and unpredictable scarcity, so your body telling you to eat the sour gummy worms is the correct choice in that context. Historically the job of the brain was to figure out how to get a steady supply without dieing. Now we have to manage our bodies like idiot babies because if we just listened to every impulse we'd end up with a host of health problems ultimately leading to reduced fertility and access to sexual partners. I mean that has always been true really, it's just never been more true than now.