Care Built Around a Former Athlete's Second Act

There is a particular kind of appointment that goes badly.

A man in his early fifties sits down and explains that he used to run competitively, or row, or play college football, and that something has changed. He is heavier than he has ever been. He is tired in a way that sleep does not fix. His training, when he manages it, hurts more and delivers less. And somewhere in the conversation a clinician says the thing that ends it: well, you were an athlete, so you're starting from a good place.

That sentence is meant kindly. It is also, depending on what sport you played and what you did to stay in it, sometimes wrong.

An athletic past is not one thing. It is a specific set of exposures — to training load, to collision, to under-fuelling, to injury, occasionally to substances — and those exposures leave different marks. Some of them protect you. Some of them do not. And almost none of them show up in a standard fifteen-minute physical, because nobody asks.

We built this part of our practice around asking.

The body you had, and the body you have

Most health content for people over 45 is written for someone who was never particularly fit. It assumes the starting point is inactivity and the goal is to begin. That is not your starting point, and it is why so much of it feels irrelevant.

You know what your body is capable of, because you have felt it. You have a reference point most people never acquire — a memory of what recovery used to feel like, what a hard session used to cost, what your weight used to sit at without effort. That reference point is useful. It is also, in midlife, a source of a particular frustration that has no name: everything is measured against a version of you that no longer exists.

The practical consequence is that former athletes tend to arrive late. Symptoms that would send someone else to a doctor get filed under getting older or not training enough, because you have spent years learning to work through discomfort and to treat fatigue as a discipline problem. That habit served you once. It does not serve you now.

Why “I was an athlete” is not the reassurance it sounds like

A 2023 scoping review in BMJ Open Sport & Exercise Medicine looked at what happens to competitive athletes in midlife — specifically ages 40 to 65, close to exactly the group we serve. It pulled together twenty studies published between 2000 and 2022.

Former endurance athletes in that review tended to be leaner, with higher aerobic capacity and better cardiometabolic indicators than controls — lower total cholesterol, lower triglycerides and lower glucose. Broadly, a favourable picture.

The team-sport picture is less flattering and, importantly, less settled than it is usually presented. The clearest signal in the review is functional: former team-sport athletes may perform worse on functional testing than recreationally active controls. On blood pressure the evidence actually splits — two studies found a lower prevalence of hypertension among former athletes, while one, in former NFL players specifically, found a higher prevalence and higher systolic pressure. Anyone telling you flatly that team-sport athletes end up hypertensive is reporting one study and omitting two.

What the review does support is the more useful point: “former athlete” is not one health profile, and advice calibrated for one history can be close to irrelevant for another.

There is a second finding worth stating plainly, because it shapes what we can and cannot tell you. Twelve of the twenty studies evaluated males only. Four included female participants exclusively — and two of those had fewer than fifty people in total, controls included. The authors flag it themselves. Much of what is confidently said about former athletes is, on inspection, said about former male athletes.

Endurance, collision and strength histories age differently

The useful question is not were you an athlete. It is what did your sport ask of you, and for how long.

Scroll the table sideways to compare →

If your history is endurance — distance running, cycling, rowing, swimming, triathlon — the metabolic picture is often genuinely good, and the thing worth examining is the one you are least likely to suspect. The MASTER@HEART study compared 191 lifelong endurance athletes with 191 late-onset athletes and 176 healthy non-athletic controls, all male, median age 55. The lifelong group had more coronary plaque, not less — more calcified, non-calcified and mixed plaque, more in the proximal segments, and more lesions causing significant narrowing.

That is not an argument against endurance training, and the distinction matters: the study did not show that running gave anyone heart disease, and the benefits of aerobic fitness remain among the best-established findings in medicine. What it did show is that a lifetime of high-volume training does not confer the immunity many endurance athletes believe it does. If your internal position is I did the miles, my heart is fine, that position is worth testing rather than assuming.

If your history is collision sport — football, rugby, hockey, wrestling, combat sports — the pattern that emerges is cardiometabolic and structural. Work from the Football Players Health Study at Harvard found that weight gained during a playing career carries forward: every ten pounds gained between college and professional play was associated with meaningfully higher later risk of sleep apnoea, heart disease and cardiometabolic conditions. The history travels with you even when the number on the scale does not.

There is also the orthopaedic ledger. Old injuries do not stay local. The same research programme found that former players who sustained ACL tears carried increased later risk not only of knee replacement and arthritis but of heart attack — plausibly because a knee that hurts is a knee that stops you moving, for decades.

If your history is strength or power sport — lifting, throwing, sprinting, bodybuilding — you likely banked more peak muscle mass than almost anyone, which is a real asset. But an athletic past changes where your decline starts, not how fast it proceeds. A high baseline is also very good at hiding a steep loss, because you continue to look and feel capable relative to everyone around you long after something has started slipping. In this group specifically there is a history that frequently goes undisclosed — past anabolic steroid use — and it changes how hormone results should be read. We ask about it directly, without judgment, because interpreting a testosterone result without it is guesswork.

What an athletic past protects, and what it does not

Bone is the clearest example of how conditional the protection is. Loading builds bone and it builds it durably — former gymnasts have been followed for well over a decade after retirement with bone benefits still measurable. But the protection is site-specific: it accrues to the skeleton that was loaded, not to the skeleton generally. A lifetime of running protects a hip in ways it does not protect a wrist.

And the protection can be undercut. A study of retired elite gymnasts found that a history of amenorrhoea — periods stopping, which in that era was routinely treated as a normal cost of the sport — compromised the bone benefit the loading should have produced, in both cortical and trabecular bone. Half the gymnasts in that study had such a history. They did the training. The training could not fully do its job because the fuel was not there.

Which means “I was an athlete, so my bones are fine” is not a general truth. It is a claim that happens to be true for many people and measurably false for an identifiable group — and the only way to tell which one you are is to look.

The same conditional logic applies elsewhere. A training history protects cardiorespiratory fitness, but not from atherosclerosis. It protects muscle mass, but not from the rate of age-related loss. And it builds a set of habits around discipline and pain tolerance which are enormously useful and which also, reliably, delay people from seeking care.

What we measure in someone with your history

Our model is the same regardless of who is sitting in front of us: we measure first, then we act. What changes for a former athlete is what we look at and how we read it. A baseline with us starts with a comprehensive lab panel — metabolic markers, a full lipid picture, liver and kidney function, thyroid, inflammatory markers, nutrient status and hormones. Your history changes the interpretation.

• A lean former endurance athlete with low testosterone is not automatically a candidate for testosterone therapy. Chronic under-fuelling relative to training demand suppresses male reproductive hormones, and it does not stop doing so just because the racing did. Treating a fuelling problem as a hormone problem is a real error, and we would rather find it.
• A former collision-sport athlete gets a closer look at blood pressure, metabolic markers and — the one most often missed — sleep. Untreated sleep-disordered breathing produces fatigue, mood change and cognitive symptoms that look like a great many other things.
• A woman with a low-fuel or amenorrhoea history gets a conversation about bone and about hormones that most clinicians will not initiate, because most clinicians do not ask what her training looked like at nineteen.
• Anyone with a substantial endurance history gets an honest conversation about cardiac risk that does not begin from the assumption that fitness equals immunity.

Where treatment fits, and where training does

Some of what shows up in this population responds to a prescription. A good deal of it does not, and we would rather say that than sell you something.

If the finding is a genuine hormone deficiency, hormone therapy may be appropriate — and if you still compete in a sanctioned masters sport, there is a conversation to have before anything is prescribed, because testosterone and DHEA are prohibited in competition without an approved exemption. We raise it rather than waiting to be asked.

If the finding is metabolic, medical weight management may have a place — alongside, never instead of, the resistance training that protects the muscle you would otherwise lose.

If the finding is a tendon that no longer tolerates what it used to, the honest answer is mostly load management and time, and we will tell you that even though we have products on the shelf. Peptide therapy is an option some people consider here, and the evidence for it is thinner than the marketing suggests. We say so on that page too.

These are tools, not shortcuts. The training still matters. It matters more now than it did when you were twenty-two, because it is the only intervention that reliably protects strength, bone and function at the same time.

An honest word on the evidence

The research base on midlife former athletes is real, and it is thinner than we would like. Most of it is cross-sectional — a snapshot comparing groups at one moment, which tells you about association and not about cause. Prior injury is rarely controlled for. Study populations skew heavily toward elite and professional athletes, when the far larger group is people who competed seriously at school and college level and then stopped. And as noted above, women are badly underrepresented across nearly all of it.

So we hold this material the way we hold anything else where the evidence is developing: as a reason to look more carefully at specific things, not as a set of conclusions about you. Where the evidence is limited, we say so on the page rather than leaving it out.

Frequently asked questions

I stopped competing twenty years ago. Is this still relevant?

Often, yes. Several findings in this area concern exposures during the athletic career that appear to carry forward independently of current fitness or weight — training load, weight trajectory, injury history, energy availability. Twenty years is not long enough for that history to stop being part of your picture.

I was a serious club and college athlete, not a professional. Does the research apply to me?

Much of the published research studies elite and professional athletes, so the exposures were at the extreme end. That is a genuine limitation. But the mechanisms — training volume, under-fuelling, collision, injury — are the same ones, and the far larger population is people at exactly your level. We treat the research as a guide to what to examine, not as a prediction about any individual.

Does an athletic past mean I need less medical attention, or more?

Neither, exactly. It means you need different attention. Some risks are genuinely lower. Some are higher. And the biggest single risk in this group is not any particular condition — it is the habit of working through symptoms that should have prompted a conversation.

I am a woman and everything I read about former athletes seems to be about men. Am I imagining that?

You are not. In the 2023 scoping review of midlife former athletes, twelve of the twenty studies evaluated males only, and just four included female participants exclusively — two of those with fewer than fifty people including controls. The largest study of lifelong endurance athletes' coronary health was entirely male. The authors of the review flag the gap themselves.

Do I have to still be training to be seen here?

No. A substantial part of this audience has not trained seriously in years, and some of what we look for is more relevant, not less, in that case.

Where this fits in your plan

If you have an athletic history, the starting point is the same as it is for anyone: find out what is actually going on before deciding what to do about it. A baseline panel and a conversation that includes what your sport asked of you, for how long, and at what cost.

From there the plan is yours — and it will look different depending on whether your history is twenty years of distance running, a decade of collision sport, or a lifting career you have never fully described to a doctor.

How we write and review our content

ACT 2 Health provides clinician-led care. Treatments are available only to eligible patients following clinical evaluation and within applicable regulations. This content is educational and is not medical advice. Individual results vary.

Care is delivered via telemedicine by healthcare professionals licensed in the state where the patient is located. Services are available only in states where our providers are licensed.