What Heart Failure Taught Me About the Way We Keep Going

She walked into the clinic saying she was fine.

This is worth pausing on, because she said it with complete sincerity. She was not performing composure for my benefit. She genuinely believed it. She had a full schedule, a productive week, a flight to catch on Thursday. Her presenting complaint was mild shortness of breath on climbing stairs, which she attributed to being out of shape. The kind of thing you mention at the end of an appointment, almost as an afterthought.

Her echocardiogram told a different story.

Heart failure with preserved ejection fraction. HFpEF, in clinical language. The left ventricle was pumping, its ejection fraction normal at sixty-two percent, the muscle squeezing and releasing as designed. By the traditional measure of cardiac function, the pump worked. But the ventricle walls had become stiff. They could not relax fully between beats, could not fill properly with the blood the body was sending, could not generate the output that her stairs and her schedule and her Thursday flight required. The pump was operating. The pump was failing. Both statements were true simultaneously.

Dr. Job Mogire has read hundreds of echocardiograms like hers. He has also lived a version of it. And the warning signs of burnout that I watch for in high-achieving patients have, over years of clinical practice and personal reckoning, begun to look precisely like this: a system that appears to be functioning while quietly failing in the ways that standard testing does not catch. The moment that failure becomes undeniable: the parked-car moment: is the subject of I Read Everyone’s Vitals But My Own.

The Two Types of Failure

In cardiology, heart failure falls broadly into two categories, and the distinction matters because they look different, progress differently, and require different approaches.

Reduced ejection fraction, HFrEF, is the version most people picture. The weakened heart. The muscle that cannot squeeze. The pump genuinely impaired, measurably so. The patient who is visibly struggling, who cannot walk across a room without stopping, whose body is clearly in distress. This is the failure that looks like failure. It is unmistakable to the physician and to the patient.

Preserved ejection fraction is the subtler and, in many ways, the more insidious presentation. The muscle squeezes. The number looks normal. The patient looks fine. But the stiffness is there, progressive, structural, real, and the system is working harder than it should to produce output that appears normal. The ejection fraction is preserved by effort and compensation, not by health. The patient on the treadmill can perform. The patient on the echocardiogram shows a heart that is compensating for a problem it has not named.

There are more people walking around with preserved ejection fraction than with reduced. The reduced version gets diagnosed because it presents obviously. The preserved version gets missed because everyone in the room, including the patient, looks at the output and calls it adequate.

I am not speaking about cardiology anymore.

The Human Version of Preserved Function

The high achiever, the Kenyan professional, the diaspora nurse working two twelve-hour shifts, the executive who has been running the same race since childhood, almost always presents with the preserved version. They are not visibly failing. They are showing up. The numbers are fine. The deliverables arrive on time. The family sees the performance. The colleagues see the output. The performance review is good.

Inside, the ventricle walls have stiffened.

What does stiffness look like in a person? It looks like the inability to fill properly: to receive rest, to receive connection, to be moved by the things that should move you. You sit at a celebration and feel nothing, or feel a distant version of what the occasion should produce. You finish a significant achievement and notice, with a flatness that surprises you, that it did not land the way you expected. You are present at your own life in the way a physician is present at a chart review: competent, efficient, and not quite there.

You are also working harder than your output suggests. The ejection fraction looks normal, but maintaining it is costing you something that does not show on the output. The morning is harder to start than it used to be. The recovery from difficult periods is slower. What used to take an evening off now takes a week, and even a week does not quite do it. You are running the same output on a machine that is compensating more aggressively with each cycle.

This is not weakness. It is the precise mechanism of preserved function. The machine adapts. It sacrifices flexibility to maintain output. It stiffens in order to keep pumping.

The question no one is asking, because the output looks fine, is: what is the stiffening costing?

The Saturday Past Midnight

A few minutes past midnight on a Saturday, halfway through a twenty-eight-hour shift, I sat in a grey Toyota Corolla on the third level of a hospital parking garage in Wichita and discovered I could not feel my own heart.

An hour earlier I had restarted a stranger’s.

My left hand trembled on the wheel. My right hand held a cold tuna sandwich. There was a metallic taste in my mouth that I recognized clinically as the signature of a system under significant physiological stress, and which I noted and disregarded. I was not sad. I was not afraid. I was blank. The particular blankness of a ventricle that has been pumping so long, against so much resistance, that it has nothing left to fill with.

I am a cardiologist who ignored his own heart. Sit with how absurd that is, because the absurdity is not incidental. It is the lesson. Expertise does not protect you. In some cases it is the precise thing that allows you to diagnose everyone around you and negotiate your own findings into the acceptable column. I could read the echocardiogram. I chose not to apply it.

My ejection fraction, in every professional sense, was preserved. I showed up. I performed. I restarted hearts. I documented and followed up and made the difficult calls and taught the residents. The output was normal. The inside of the machine was stiffening.

What the Stiffening Looks Like Before the Crisis

Heart failure with preserved ejection fraction follows a pattern I now recognize in people who have never had a cardiac event. The warning signs are not the dramatic ones. They are the small, persistent ones that get explained away until they cannot be explained away anymore.

The fatigue that sleep does not touch. The body is compensating harder during the night, not resting. Sleep becomes a period of effort, not recovery.

The narrowing of what moves you. Stiff ventricles cannot fill to their full capacity. Stiff people cannot be moved to their full emotional range. Things that should produce joy produce mild satisfaction. Things that should produce anger produce mild irritation. The range narrows. You feel, accurately, that you are experiencing life through a slightly reduced signal.

The plateau in recovery. Every athlete knows the training stimulus: you stress the system, you recover, you come back stronger. But a system that is compensating, not recovering, does not come back stronger. It comes back at the same level, then slightly lower, then lower still. You notice that the things that used to restore you have stopped working. The vacation did not fix it. The promotion did not fix it. The new project did not fix it.

The moment of blankness at the peak. She walked in saying she was fine. She climbed the stairs and was short of breath, but the main appointment was good. Her numbers were good. Her life was good. The blankness, the flatness at moments that should have been full, was the thing she had stopped mentioning, because it had become the baseline, and you stop mentioning the baseline.

(There is a specific kind of person who reads this and thinks: that is fine, I just need a better system. That person is the one I am most describing.)

The Repair

In cardiology, the treatment of HFpEF is not the same as the treatment of reduced ejection fraction. You do not simply strengthen the muscle. The muscle is already squeezing. The work is to reduce the stiffness: to address the structural changes that are preventing the ventricle from filling, from being moved, from doing the work of receiving.

This requires a different intervention than the one most high achievers reach for, which is more output, more performance, more discipline. More squeezing from a system that needs to learn how to relax.

The equivalent work in a person is what I call the return. Not a vacation. Not a sabbatical that ends with the same pace on Monday morning. A structural change in the relationship between the person and their own interior: the part that receives, that fills, that allows incoming life to register.

This is not soft work. I will not pretend it is. The broader architecture of what the return actually looks like, not the theory but the practice, is in The Practice of Return: What Coming Home to Yourself Actually Looks Like, which describes the diagnostic and the practice together. The stiffening that allowed you to function at preserved levels for years is not going to yield to a long weekend. It requires diagnosis first: naming the pattern, mapping where the stiffness lives, understanding what compensation has been costing, and then a deliberate, sustained practice of returning to the softer tissue underneath it.

The patient who walked in saying she was fine left with a treatment plan. It was not the one she expected. It was not a new medication or a dietary change. It was a reckoning with a system that had been protecting her by stiffening, and that now needed to learn, slowly and with support, how to fill again.

The Return Clinic

Twenty seats. Five nights. The room where the actual work happens. KSh 3,000.

What is the earliest sign that something inside you is compensating. the signal that arrives before the blankness does?

Dr. Job Mogire is a board-certified cardiologist and founder of House of Mastery.

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