You passed the CPAT years ago. When was the last time you actually tested your engine? Here's why it matters. VO2 max is the single strongest predictor of how long you live. Stronger than cholesterol. Stronger than blood pressure. It's the size of your aerobic engine, and every fire you fight is a max effort event that draws on it. NFPA says every firefighter needs a 12 MET engine to do this job safely. Most firefighters over 40 can't hit it. Not because they're lazy. Because nobody ever measured it. You get a physical, maybe an EKG, and you're back on the rig. Nobody puts a number on the one system that decides whether you walk out of a working fire or get carried out. So let's put a number on it. Here's the test. It's called the Cooper Test, and it's been used by militaries and fire academies for over 50 years because it works with zero equipment. Warm up for 10 minutes. Then run, jog, or walk as far as you possibly can in 12 minutes. A track is ideal so you can count laps, but a treadmill works too. Write down your total distance. That distance converts directly to your estimated VO2 max. The further you cover, the bigger your engine. Cover about 1.5 miles and you're right around the 12 MET job standard. Come up short and now you know exactly what you're training for. I put the full test instructions, the conversion chart, and the training plan to raise your number in one doc. [Take The Engine Test here] No guesswork. No hiding. Just your number and a plan. Stay calibrated, John

Most firefighters train like athletes. Heavy lifts. High intensity. Max effort. The mindset that got you through the academy, through the job, through everything. That mindset will end your career early if it is the only tool you have. Here is why. Strength training builds the engine. Nervous system training determines how long the engine runs. Your heart disease risk as a firefighter is not primarily driven by poor fitness. It is driven by chronic sympathetic nervous system activation, the same threat response that makes you effective on scene running 24 hours a day with no off switch. Cortisol stays elevated. Inflammation builds. The cardiovascular system takes the hit not from lack of exercise but from lack of recovery. The firefighters who make it 25 years healthy are not necessarily the strongest. They are the ones whose nervous systems learned to shift out of threat mode between calls. Lower resting heart rate. Higher HRV. Faster recovery between shifts. That shift does not happen in the weight room. It happens in the five minutes after your workout when you slow your breathing down deliberately. It happens in the morning sunlight protocol that resets your cortisol curve. It happens in the recovery session you do instead of watching TV before bed. Strength training is important. It is not the variable that determines whether you retire healthy or become a statistic. Your nervous system is. Stay calibrated,John

https://youtu.be/dtj3SrtbDog?si=Rs9idLW2bg5_IbpA

After working with firefighters and first responders, I’ve noticed something important. The things that make the biggest difference aren’t complicated. Just like wearing your mask on scene, there are a few non-negotiables that help keep stress from building up and spilling over into life at home. Most firefighters already know they should exercise, sleep more, and eat better. The real challenge is that chronic stress and hypervigilance train the nervous system to stay in survival mode, affecting recovery, relationships, and well-being. The good news: these patterns can change. 1. Morning Regulation Before Stimulation Instead of immediately checking phones and messages, spend 10–15 minutes outside. Get sunlight, walk, and breathe. This helps improve energy, sleep, resilience, and emotional stability. 2. Daily Zone 2 Movement Walking, biking, swimming, or rucking may be more valuable than constant high-intensity training. Zone 2 work improves cardiovascular health, recovery, and stress tolerance with minimal strain. 3. Intentional Emotional Processing The people making the biggest gains often journal, reflect, practice gratitude, and communicate honestly. Emotional processing isn’t weakness—it’s a skill that supports resilience and healthier relationships. 4. Daily Presence Many first responders struggle to fully disconnect from work. Thriving individuals create moments of presence: time with family, a walk outside, fishing, or simply sitting quietly. Presence reminds the body, “I am safe right now.” The Bigger Picture Four non-negotiables: - Morning sunlight and breathwork - Daily Zone 2 movement - Emotional processing - Intentional presence These habits improve recovery, resilience, relationships, and quality of life. The goal isn’t just performing better on the job. It’s fully experiencing life again. Which of these four non-negotiables has made the biggest difference in your life, or which one do you want to focus on first?