What does "healthy" actually mean?

 The average American man now lives to about 76.5 years, according to the most recent CDC mortality data (NCHS Data Brief No. 548, January 2026). That number has been climbing steadily for decades thanks to extraordinary advances in medical science and public health infrastructure. Vaccines, antibiotics, sanitation, emergency medicine -- we've gotten remarkably good at keeping people alive longer. And for most of my life, I took that progress as the whole story. Health meant not being sick. Being healthy meant being disease-free.

When my cholesterol numbers came back high, I didn't question the model. I just followed my doctor's advice and started taking a statin. When I became pre-diabetic, same playbook -- follow the doctor's orders, manage the condition. Like many people, my entire relationship with health was built around a simple loop: get diagnosed, get treated, move on. As long as I wasn't actively fighting a disease, I figured I was healthy.

That changed when I actually started thinking about what "healthy" means.

The disease model has a ceiling. It's binary: you either have a disease or you don't. You're either within the normal reference range or outside it. The goal is to get back to "normal" and stay there. And normal, by definition, is just the absence of pathology -- it's not a statement about how well you're actually doing.

But the research tells a different story. Take BMI and all-cause mortality. A large-scale study of 1.46 million adults published in the New England Journal of Medicine (Berrington de Gonzalez et al., 2010) found a J-shaped relationship between BMI and mortality risk -- meaning there's a Goldilocks zone (roughly a BMI of 20 to 25 for healthy non-smokers) where your risk of dying from any cause is lowest. Go too high or too low, and risk climbs. The key insight isn't that being "not obese" is good enough. It's that there's an optimal range, and you can aim for it proactively rather than waiting until your numbers cross a disease threshold.

This pattern repeats across many health metrics. Blood pressure, blood glucose, inflammation markers, cardiorespiratory fitness -- for each of these, there's not just a "diseased" zone and a "fine" zone. There's a spectrum, and where you sit on that spectrum meaningfully changes your odds.

That realization led me to a framework I've been thinking about a lot. There are three levels of health, and most of us are stuck on level one:

Level 1: Disease management -- "I have a condition, and I'm treating it."

This is where traditional medicine excels. You have high cholesterol, you take a statin. You have Type 2 diabetes, you manage your blood sugar. The goal is to control the disease and minimize its impact. It's necessary, it's important, and for acute conditions it can be life-saving. But it's fundamentally reactive. You're responding to a problem that already exists.

Level 2: Risk reduction -- "I'm statistically reducing my chances of getting the disease in the first place."

This is where the J-curve thinking comes in. Instead of waiting for a diagnosis, you proactively manage your health metrics to stay in the optimal range. You're not just "not sick" -- you're deliberately positioning yourself where the data says your risk is lowest. This means:

·   Knowing your key biomarkers and where they fall on the risk curve -- not just whether they're "normal"

·   Understanding your family history and genetic predispositions

·   Making lifestyle choices (exercise, nutrition, sleep) that are calibrated to move your numbers toward optimal, not just acceptable

·   Tracking trends over time, not just snapshots

The difference between Level 1 and Level 2 is the difference between paying off debt when collectors call and building a diversified portfolio before you need it.

Level 3: Resilience -- "I can withstand stress, recover from setbacks, and maintain function under pressure."

This is the level I find most exciting and least discussed. Resilience means your body doesn't just avoid disease -- it can take a hit and bounce back. You get a bad flu and recover in days, not weeks. You go through a stressful period at work and your sleep doesn't collapse. You have a minor injury and your body repairs quickly because the underlying systems are strong.

Resilience is built through controlled stress: exercise that challenges your cardiovascular and musculoskeletal systems, cold exposure that trains your inflammatory response, fasting that activates cellular repair pathways, sleep optimization that gives your body the recovery time it needs. The idea isn't to avoid stress -- it's to build the capacity to handle it.

Credit: image generated by AI

Here's how I think about these three levels together:

Level	Mindset	Question you're asking
1. Disease management	Reactive	"How do I treat what I have?"
2. Risk reduction	Proactive	"How do I prevent what I'm likely to get?"
3. Resilience	Adaptive	"How do I build a body that can handle whatever comes?"

Most people -- including me, until recently -- live entirely at Level 1. We wait for the diagnosis, then scramble. Some people graduate to Level 2 by getting serious about prevention. Very few operate at Level 3, where the goal isn't just to avoid disease but to build a body that's genuinely hard to break.

I'm not claiming I'm at Level 3 yet. I'm barely getting organized at Level 2. But just having this framework has changed how I think about every health decision. When I'm evaluating a new habit, supplement, or test, I ask myself: is this managing a disease, reducing a risk, or building resilience? That question alone clarifies whether I'm playing defense or actually investing in a stronger foundation.

Where are you on the three levels? And what would it take to move up one?

Ricky

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Note: This blog post was AI-generated, simulating my writing voice based on my previous blog posts. While the ideas and direction are mine, the actual prose was significantly written by AI. I believe in transparency about AI-assisted content creation.