I can tell you, almost to the year, when a heart attack is coming.
Not because I’m clairvoyant — because the numbers tell me. And they whisper it long before the chest pain, long before the stent, long before the phone call no family should ever have to take.
A fasting insulin of 8 today is diabetes in five years. An ApoB of 120 is a heart attack in ten. An hs-CRP of 3 means your arteries are inflamed right now — while you feel perfectly, deceptively fine.
Here’s the uncomfortable truth about the system most of us trust with our lives: your annual physical was never designed to see any of this. It was built to catch disease that has already arrived. By the time it sounds the alarm, the fire has been burning for years.
After 40, you can’t afford to guess.
These are the numbers I run on myself. I run them on every patient I love. Most are inexpensive bloodwork. All are available to you right now. And together they paint a portrait no standard checkup will ever hand you — not just where you stand today, but where you are heading.
Print this. Bring it to your next appointment. Own the data.
Part One — Your Metabolic Engine
Everything downstream — your heart, your brain, your energy, the speed at which you age — runs on how well you handle fuel. These four numbers read that engine years before it starts to knock.
1. Fasting Insulin
Target: under 5 µIU/mL. Ideal: 3–4.
This is the ten-year warning bell your standard panel never rings. Your glucose and A1c can sit comfortably in the “normal” range for a decade while your pancreas works overtime behind the scenes to keep them there. Fasting insulin catches that hidden strain five to ten years before your A1c so much as twitches. By the time A1c finally rises, the damage is already extensive.
2. HOMA-IR
Target: under 1.0.
Calculated from your fasting insulin and glucose, this is the single cleanest measure of insulin sensitivity in medicine. Above 1.0, your metabolism is already under strain. Above 2.5, you are insulin resistant — no matter how flawless every other number on your panel looks.
3. HbA1c
Target: under 5.4%.
Not under 5.7% — that’s the line where medicine finally calls you “prediabetic,” and by then you’ve been metabolically compromised for years. Aim lower. Blood-sugar mastery is longevity mastery.
4. Triglyceride-to-HDL Ratio
Target: under 2. Ideal: under 1.
Your metabolic crystal ball — hiding in plain sight on a lipid panel you’ve probably already had drawn. This ratio predicts insulin resistance, cardiovascular risk, and metabolic syndrome better than any single cholesterol number alone. Above 3.5 is a red flag, regardless of what your total cholesterol says.
Part Two — What’s Actually Happening in Your Arteries
A “normal” cholesterol panel is one of the most dangerous reassurances in modern medicine. These three numbers tell you the real story unfolding on your artery walls.
5. ApoB
Target: under 80 mg/dL for moderate risk. Under 60 if you’re high-risk.
ApoB counts every single particle capable of burrowing into your artery wall and starting a plaque. LDL only estimates the cholesterol those particles are carrying — and the two routinely disagree. Study after study now shows a large share of people with reassuring LDL still walking around with dangerous ApoB — atherogenic risk that standard testing waved right through. The 2026 ACC/AHA guidelines elevated ApoB for exactly this reason. If LDL is the only lipid number you know, you’re driving with one eye closed.
6. Lp(a)
Test once in your lifetime.
One in five of us carries an elevated level — and it triples heart-attack risk independently of everything else on this list. Diet, exercise, and willpower cannot move it, because it is almost entirely genetic. For the first time ever, the 2026 ACC/AHA guidelines now recommend that every adult be tested at least once, with the strongest possible (Class I) designation. Most people never have been. Knowing your Lp(a) changes how aggressively you treat everything else on this page.
7. hs-CRP
Target: under 1.0 mg/L.
You can have picture-perfect cholesterol and arteries that are quietly inflamed and preparing to rupture. hs-CRP measures the fire behind the plaque. The landmark JUPITER trial proved that finding and treating that inflammation saves lives — even when lipids look fine. If your number is elevated, start the search in your mouth, your gut, your metabolic health, and your visceral fat. That’s usually where the smoke is coming from.
Part Three — Your Reserve Tank
These reveal how much resilience you’ve got left in the tank — how well your body defends, repairs, and withstands.
8. Vitamin D
Target: 50–80 ng/mL.
Not the rock-bottom 30 most labs accept as “normal.” Suboptimal vitamin D tracks with higher inflammation, weaker immunity, more cardiovascular events, lower mood, and worse outcomes across nearly every disease I treat. Supplement D3 alongside K2 — without K2, the calcium you mobilize can settle in your arteries instead of your bones.
9. Testosterone (Total + Free)
Men: optimal range 600–1000+ ng/dL total.
Declining testosterone is an independent predictor of cardiovascular death in men — tied to insulin resistance, arterial stiffness, visceral fat, and systemic inflammation. DHEA-S falls 10–20% every decade after 30. This was never about vanity. It’s a direct read on your body’s whole-system resilience.
Part Four — The Two You Can Feel
You don’t need a lab for these. You need a $40 cuff and a pair of running shoes. And they may be the two most predictive numbers of all.
10. Blood Pressure
Target: under 120/80. Aim closer to 110/70.
Every point above optimal is cumulative arterial damage. Buy a home cuff — the smartest $40 you’ll ever spend on your heart. Measure morning and evening: seated, quiet, five minutes, arm at heart level. The white-coat reading in my office misses what’s really happening the other twenty-three hours of your day.
11. VO₂ Max
Men over 40: above 40 mL/kg/min. Women over 40: above 35.
Cardiorespiratory fitness is the single strongest predictor of all-cause mortality there is — a more powerful individual risk factor than smoking, diabetes, or existing heart disease. A landmark JAMA study found the most fit had the lowest mortality, with no upper limit to the benefit. Estimate it with a timed mile, a rower, or a wearable. Then get faster every year you’re alive.
Part Five — The Number That Should Be Falling
12. Your Medication Count
Target: as few as truly earn their place.
Every drug you take should be justifying its seat at the table. I recently wrote about five commonly prescribed medications that do more harm than good with long-term use. Bring your full list to every visit and ask the question almost no one asks: “Do I still need this?” Deprescribing is one of the most powerful — and most ignored — tools in all of medicine.
And One Scan That Sees What Blood Cannot
13. Coronary Artery Calcium (CAC) Score
Target: zero. Every point above is plaque you can see.
This is the one test on the list that isn’t bloodwork — and it may be the most clarifying of all. A fast, low-radiation CT scores the calcified plaque already sitting in your coronary arteries. Every other number here tells you your risk; CAC tells you what has already happened. A score of zero is one of the most reassuring numbers in all of medicine. A high one rewrites your entire prevention plan. The 2026 guidelines lean on it precisely to settle the hard cases — to decide who needs to treat aggressively now and who can safely wait. If your bloodwork is ambiguous, this is the tiebreaker.
Here’s What I Need You to Understand
Thirteen numbers. Most of them cheap. All of them available now. Get them once or twice a year.
These don’t just tell you where you are — they tell you where you’re going. The standard physical was built to find disease that has already taken up residence in your body. This panel finds the disease that’s still on the road, and hands you the years you need to turn it around.
What gets measured gets improved. So measure — then build the foundation I write about here every week:
Zone 2 cardio plus resistance training, three to four times a week
High-protein, whole-food nutrition
Seven to nine hours of sleep — non-negotiable
Morning sunlight
Real stress management
The targeted supplements I’ve covered in depth: creatine, magnesium, CoQ10, D3 with K2, glycine, omega-3, psyllium
The breakthroughs coming this decade — gene editing for cholesterol, cellular reprogramming, senolytics that clear the “zombie” cells driving inflammation and aging, GLP-1 drugs rewriting metabolic medicine — will reward most the people who’ve already built the metabolic foundation to receive them.
The future of medicine is personalized. But it begins with knowing your own numbers today.
Prevention is not passive. It is the most aggressive — and the most hopeful — thing you can do for the decades in front of you, and for the people quietly counting on you to still be here.
Print the list. Book the bloodwork. Own the data.
Your 60-year-old self is already grateful.
Blessings.
Afshine Ash Emrani, M.D., F.A.C.C.
Assistant Clinical Professor, UCLA
David Geffen School of Medicine
Castle-Connolly Nationwide Top Doctor (Since 2008)
Los Angeles Magazine Super Doctor (Since 2010)
LA Style Magazine Top 100 Doctors in America (2024)
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How do I get doctors to take hs crp seriously?