Here's the paradox: the same drive and intensity that make high achievers successful can also produce chronic physiological stress that, over years, may raise their cardiovascular risk. People in demanding leadership roles tend to exercise more, eat better, and have better access to healthcare than the general population — yet some of them show elevated inflammatory markers, disrupted sleep, and metabolic dysfunction that their lifestyle advantages should prevent.

An often-missing variable is chronic stress — and one of its biological mediators, cortisol.

What chronic stress actually does

Acute stress is healthy. The cortisol spike that helps you perform under pressure is adaptive — it sharpens focus, mobilizes energy, and enhances performance. The problem is when the spike never fully resolves.

Chronic stress disturbs the normal cortisol rhythm for weeks, months, years: in some people cortisol stays high, in others its daily curve flattens or the tissues become less responsive to it. This has cascading physiological effects that touch almost every system a thorough check-up assesses:

  • Cardiovascular: Sustained stress activation raises blood pressure, promotes endothelial dysfunction, and is linked to faster atherosclerosis. A 2012 meta-analysis of 13 European cohort studies with nearly 200,000 employees found that job strain was associated with a 23% higher risk of coronary heart disease; the association changed little after accounting for lifestyle and socioeconomic factors, although its overall contribution was much smaller than that of smoking.
  • Metabolic: Cortisol promotes visceral fat accumulation, insulin resistance, and elevated blood glucose — even in people who exercise and eat well. This may be one reason why some people with excellent fitness habits still have elevated HOMA-IR.
  • Inflammatory: Chronic stress is associated with higher hs-CRP and other inflammatory markers; one proposed mechanism is that immune cells become less sensitive to cortisol's anti-inflammatory signal. Systemic inflammation is a recognized driver of cardiovascular disease.
  • Sleep: Elevated evening cortisol disrupts sleep onset, reduces deep sleep, and fragments sleep architecture. Poor sleep then amplifies the stress response, creating a self-reinforcing cycle.
  • Immune: Chronic stress disturbs immune regulation. In experimental studies, people whose immune cells responded poorly to cortisol were more likely to develop a cold after exposure to a cold virus.

Why standard check-ups miss the connection

A standard annual physical doesn't measure cortisol. It doesn't ask about work stress in a structured way. And even when individual markers are mildly elevated — hs-CRP of 2.1, fasting glucose of 98, blood pressure of 132/84 — the physician typically addresses each one in isolation rather than recognizing the pattern.

The pattern is: chronic stress → cortisol → metabolic disruption → cardiovascular risk. It's one mechanism producing multiple "borderline" abnormalities that look unremarkable individually but are significant collectively.

The high performer who runs marathons, eats clean, and still has elevated inflammatory markers and borderline metabolic numbers isn't a medical mystery. Chronic stress is often part of the explanation — and no amount of exercise can fully compensate for what cortisol does at 11 PM when they're still answering emails.

A reasonable approach

Taking stress seriously in a check-up means more than a generic "how stressed are you?" question. A useful history covers specific points: sleep quality, work hours, decision fatigue, recovery patterns, and physical stress symptoms. Ideally, your physician reads these answers alongside the clinical exam and lab results rather than separately.

Several routine markers capture the downstream effects: hs-CRP (inflammation), HOMA-IR (metabolic stress), blood pressure pattern, HbA1c (glycemic load), and a sleep assessment. When these point to stress-driven metabolic disruption, it is worth addressing directly with your doctor — with specific, actionable recovery strategies that go beyond "reduce stress." Useful questions include:

  • Do my borderline values form a pattern, rather than isolated findings?
  • How is my sleep — and should it be assessed more formally?
  • Which concrete changes to workload and recovery would make the biggest difference?

The uncomfortable truth

You can't supplement your way out of chronic stress. You can't exercise your way out of it entirely. You can't biohack it with cold plunges and meditation apps (though both help at the margins). At some point, the conversation has to address the source — and that's a conversation most routine check-ups are not structured to have. It is worth starting anyway, with data, not judgment.

References

  1. Kivimäki M, et al. Job strain as a risk factor for coronary heart disease: a collaborative meta-analysis of individual participant data. Lancet. 2012;380(9852):1491-1497.
  2. Hackett RA, Steptoe A. Psychosocial factors in diabetes and cardiovascular risk. Curr Cardiol Rep. 2016;18(10):95.
  3. Cohen S, et al. Chronic stress, glucocorticoid receptor resistance, inflammation, and disease risk. PNAS. 2012;109(16):5995-5999.
Prof. Dr. med. Markus Guba

Head of Liver Surgery and Transplantation at LMU University Hospital Munich. Edits this independent journal in a private capacity; views are his own. About →

This article is general information and not individual medical advice. Decisions about tests and treatment belong in a conversation with your own physician.