Monday night, a 38 year old third string quarterback walked onto the field for the Chicago Bears. Case Keenum hadn't started a game in almost three years. He had retired once already. The starter got hurt. The backup got hurt. The job fell all the way down the depth chart to him. He beat the unbeaten Eagles and threw two touchdowns. When people asked how, he pointed to something he's said for years: "You don't have to get ready if you stay ready." Every firefighter understands that. We don't get to stretch when the tones drop at 3am. We don't get a week's notice before the worst call of our career. We stay ready for the job every single shift. But most of us don't do that for our health. We go hard for a while. Then overtime stacks up, sleep falls apart, the kids get busy, and training drops to zero. Then a few months later we "start over." Again. Here's the problem. Zero is the only dose that really costs you. Every year that road back gets longer. And the research says much of the muscle and fitness we blame on age actually comes from disuse. Our bodies don't expire at 40. They fade when we stop using them. Keenum didn't stay ready by training like a starter. He stayed ready on the minimum. Film, meetings, reps in his head. We can do the same thing. On a tough stretch, you don't need a full program. You need a maintenance dose: 1. Two Zone 2 sessions a week, 20 to 30 minutes at a pace where you can still talk. Easy enough to do on shift. 2. Two hard sets, twice a week, on the big patterns. A squat or hinge, a push, a pull. 3. Protect one sleep window. Same bedtime on your off nights, no matter what. That's it. Not progress. Just keeping the door open so you're not starting from the parking lot later. You don't have to get healthy if you stay healthy. Reply and tell me which one fell off first for you. Training, sleep, or food. Stay calibrated, John