We Built a System to Keep You Alive. We Forgot to Keep You Well.
Modern medicine has become remarkably good at rescuing us from disease. Modern food production has become remarkably good at giving us inexpensive, convenient, shelf-stable calories.
The problem is that neither accomplishment automatically creates healthspan.
There is a difference between being alive and being well.
That distinction sounds obvious until you look at the way we measure success in health care.
Did the patient survive?
Did we prevent the heart attack?
Did the medication lower the number?
Did we get another five years?
Those are important questions.
But I think we need another one:
What condition are you going to be in during those extra years?
Can you walk?
Can you travel?
Can you think clearly?
Can you get off the floor?
Can you play with your grandchildren?
Are you strong enough to tolerate an illness?
Are you living independently?
That is the conversation about healthspan.
Lifespan Is Not Healthspan
Reactive Care
Wait until something breaks, hurts, becomes abnormal, or produces a diagnosis—then intervene.
Disease Management
Diagnose earlier and manage disease effectively, potentially extending life—but often after significant functional decline has already occurred.
Healthspan-First
Build physical, metabolic, cognitive, and physiological reserve before disease or disability forces the issue.
The goal isn’t simply to move death farther to the right. It’s to move decline farther to the right.
Fallacy #1: If You Aren’t Sick, You Must Be Healthy
Health care needs thresholds.
We need criteria for diabetes. Hypertension. Osteoporosis. Heart failure. Kidney disease.
Those definitions help us diagnose and treat disease.
But biology does not suddenly flip from healthy to diseased the day someone crosses a diagnostic threshold.
Function can change gradually.
Muscle can disappear gradually.
Insulin sensitivity can worsen gradually.
Blood pressure can trend upward.
Sleep can deteriorate.
Physical capacity can decline.
Body composition can shift.
There Is a Large Space Between “No Diagnosed Disease” and “Optimal Health”
That space is where healthspan lives.
Modern Medicine Is Incredible at Rescue
If I am having a heart attack, I do not want a wellness coach.
I want a cardiac catheterization lab.
If I have bacterial sepsis, I want antibiotics.
If I rupture my appendix, I want a surgeon.
If I have cancer, I want people who understand oncology.
But Rescue Medicine and Healthspan Medicine Are Different Jobs
Saving someone from a heart attack is not the same thing as spending twenty years building the metabolic, cardiovascular, muscular, and behavioral reserve that lowers the chance of ever needing that rescue.
The Health Care System Has an Incentive Problem
Historically, much of American health care has operated through fee-for-service.
The basic structure is simple: provide a service and receive payment for the service.
Medicare’s own advisory commission has acknowledged that traditional fee-for-service payment historically rewarded the volume of services provided rather than the quality of those services.
That is precisely why CMS and other payers have spent years trying to shift toward value-based care, where quality and outcomes matter more.
Prevention Does Exist
Screening, vaccination, preventive visits, counseling, and value-based payment programs are real parts of modern medicine.
The criticism is not that prevention is absent. It is that our system has historically been much better structured to pay for measurable medical services than for decades of health that never become a billable disease.
Screening for Disease Is Not the Same as Building Health
Disease Prevention & Detection
Check blood pressure.
Screen for cancer.
Measure cholesterol.
Monitor glucose.
Vaccinate.
Identify disease earlier.
Building Healthspan
Build muscle.
Improve cardiovascular fitness.
Protect sleep.
Improve metabolic health.
Eat nutrient-dense food.
Maintain mobility and physical reserve.
Finding disease earlier is valuable. Building a body that resists disease is a different strategy.
Then There Is the Food System
For most of human history, obtaining calories was difficult.
Today, many of us face the opposite problem.
Calories are everywhere.
They are inexpensive.
Convenient.
Portable.
Shelf-stable.
Engineered to taste good.
That Is Not a Willpower Statistic
When more than half of the calories consumed by an entire population come from a category of food, it is difficult to explain the problem solely as millions of individual failures of discipline.
Environment matters.
The Food Industry Has Different Goals Than Your Mitochondria
A food manufacturer has to make something people will buy.
That means commercial products often compete on things like:
Taste
People have to enjoy it enough to purchase it again.
Convenience
It needs to fit a fast, portable, low-preparation lifestyle.
Shelf Life
Longer storage reduces waste and makes distribution easier.
Price
Products must compete for consumer attention and household budgets.
None of those goals is inherently evil.
But notice what is missing.
Nobody at the checkout counter gets paid because that food helped preserve your muscle, insulin sensitivity, or cardiovascular function 25 years later.
Healthspan is valuable to you.
It is not automatically priced into the transaction.
The NIH Put Ultra-Processed Food to the Test
Researchers admitted 20 healthy adults to an NIH metabolic unit.
Each participant spent two weeks eating an ultra-processed diet and two weeks eating an unprocessed diet in random order.
The offered diets were designed to be matched for calories and major nutrients including sugar, fat, carbohydrates, fiber, and sodium.
Participants were allowed to eat as much or as little as they wanted.
What Happened?
The researchers did not conclude that every processed ingredient is toxic.
They demonstrated something more practical:
Food Structure Can Change Eating Behavior
People spontaneously consumed substantially more energy when eating the ultra-processed diet.
That means the health conversation cannot be reduced to “just have more self-control.”
“Just Eat Better” Isn’t a Complete Strategy Either
Whole food takes planning.
Often preparation.
Sometimes more money.
It may spoil more quickly.
People work long hours.
They have kids.
They travel.
They live in different communities with different resources.
Even the NIH investigators who performed the ultra-processed-food experiment pointed out that simply telling people to eat better may be inadequate when access, time, and cost are working against them.
Personal Responsibility Still Matters
But personal responsibility and environmental influence can both be true at the same time.
Understanding the environment makes it easier to build a strategy that actually works inside it.
Look at the Result
Chronic diseases are now the leading causes of illness, disability, and death in the United States.
According to the CDC, three in four American adults have at least one chronic health condition, and more than half have two or more.
That is not evidence that modern medicine has failed.
People survive illnesses today that would have killed previous generations.
But it should make us ask whether survival alone is a sufficient measure of success.
A longer life filled with a longer period of preventable disability is only a partial victory.
Healthspan Is About Capacity
I think one of the better ways to understand healthspan is through the idea of physiological reserve.
How much capacity does your body have above the minimum required to function?
Muscle & Strength
How much strength can you lose during illness or aging before everyday tasks become difficult?
Cardiovascular Fitness
How much aerobic capacity do you have beyond what is required to simply walk through your day?
Metabolic Health
How effectively can your body handle glucose, fat, energy intake, and changes in demand?
Bone & Mobility
Can your skeleton tolerate falls, loading, movement, and the physical demands of aging?
Brain & Cognition
Can you continue learning, making decisions, interacting, and independently managing your life?
Recovery
How well can you tolerate illness, surgery, stress, injury, sleep disruption, or temporary inactivity?
We Know Movement Works. Most People Still Don’t Do Enough.
Physical activity is not an experimental longevity therapy.
Its benefits are well established.
Yet in 2024, only about 26% of American adults met both the aerobic and muscle-strengthening components of the federal physical activity guidelines.
Among adults 65 and older, the percentage was even lower.
This Is the Healthspan Paradox
We are willing to spend enormous amounts of money treating the consequences of physical decline while struggling to build environments, habits, and incentives that help people preserve physical capacity in the first place.
What Would a Healthspan-First Strategy Look Like?
Build Muscle
Preserve strength, metabolism, mobility, and functional reserve.
Build Aerobic Capacity
Maintain cardiovascular fitness and the ability to tolerate physical demand.
Eat Real Food
Make nutrient-dense, minimally processed food the foundation rather than the exception.
Protect Sleep
Treat sleep as a major component of metabolic, neurologic, and physical recovery.
Know Your Risk
Use appropriate screening, labs, family history, and medical evaluation to identify problems early.
Protect Metabolism
Pay attention to body composition, glucose regulation, blood pressure, lipids, and activity.
Maintain Mobility
Strength, balance, coordination, and movement preserve independence.
Use Medicine Wisely
Use medications and other therapies when the expected benefit justifies them—without expecting them to replace the foundation.
This Is Not “Lifestyle Instead of Medicine”
Sometimes the right lever is exercise.
Sometimes it is better nutrition.
Sometimes it is treating sleep apnea.
Sometimes it is lowering blood pressure.
Sometimes it is a statin.
Sometimes it is a GLP-1-based medication.
Sometimes it is surgery.
Sometimes it is physical therapy.
Sometimes emerging therapies may eventually provide additional options.
Personalized Wellness Means Choosing the Right Lever
The mistake is believing one lever can replace the entire system.
I Am Not Interested in Being Anti-Medicine
Modern medicine has saved an extraordinary number of lives.
I work in medicine.
I teach medicine.
I prescribe medications.
I believe deeply in evidence-based care.
But believing in medicine does not require pretending that our current system perfectly incentivizes long-term health.
In fact, acknowledging its blind spots is how we improve it.
I don’t want less medicine. I want less disease that requires rescue medicine.
The Same Is True of Food
I am not interested in convincing people that every packaged food is poison.
It isn’t.
Processing can improve safety, convenience, affordability, transportation, and access.
The problem is when highly processed food becomes the foundation of the diet rather than a convenience within it.
A healthy food environment does not require perfection.
It requires making the healthier decision easier to make more often.
Better Defaults Beat Perfect Discipline
Build your environment so protein, produce, minimally processed foods, water, movement, sleep, and recovery are easier—not decisions that require heroic willpower every single day.
The Goal Is to Change the Shape of the Curve
Nobody gets to remain 30 years old forever.
Aging happens.
Disease cannot always be prevented.
Genetics matter.
Luck matters.
Social circumstances matter.
Medicine cannot guarantee a perfect ending.
But there is an enormous difference between accepting mortality and accepting decades of preventable decline.
Don’t Just Add Years to the End
Build enough muscle, metabolic reserve, cardiovascular fitness, nutritional resilience, cognitive health, mobility, and recovery capacity that you can remain functional for as much of your life as possible.
The goal is not simply a longer lifespan. The goal is a longer healthspan.Maybe We Have Been Asking the Wrong Question
A better question might be:
How long can we keep someone strong, capable, independent, metabolically healthy, cognitively engaged, and able to do the things that make their life worth extending?
That changes the conversation.
It changes when we intervene.
It changes what we measure.
It changes how we think about food.
It changes how we think about exercise.
It changes how we think about medications.
And most importantly, it gives the patient something much more meaningful to work toward than simply avoiding death.
Build Health Before You Need Health Care
Use modern medicine when you need it. Use screening to identify risk. Use medications when they make sense. But spend the years before disease building a body with enough reserve to resist decline for as long as possible.
Stay strong longer. Stay capable longer. Stay you longer.What Does Your Healthspan Strategy Look Like?
A personalized wellness consultation starts with your goals and looks at the systems that influence them—including metabolic health, muscle, sleep, nutrition, cardiovascular risk, recovery, medications, and other available levers.
Book a Wellness ConsultationAbout the Author
Selected Sources
Chronic diseases in the United States, including their prevalence, contribution to disability and mortality, and associated health care costs.
View CDC Data →
Ultra-processed food consumption among U.S. youth and adults, based on NHANES August 2021–August 2023.
View NCHS Report →
Randomized inpatient trial comparing ad-libitum ultra-processed and unprocessed diets.
View on PubMed →
Summary of the controlled ultra-processed-food trial, including observed calorie intake and body-weight changes.
View NIH Summary →
Discussion of historical fee-for-service payment incentives and Medicare delivery-system reform.
View MedPAC →
CMS value-based programs designed to shift payment emphasis from quantity of care toward quality and outcomes.
View CMS →
National data on the proportion of U.S. adults meeting both aerobic and muscle-strengthening physical activity guidelines.
View Healthy People 2030 →