Essays and expert commentary from Dr. Shiv Kumar Goel, MD — internal and functional medicine physician in San Antonio, and author of the forthcoming book Healing the Split: When Your Biology Is Fighting Your Biography.
I spent the first fifteen years of my career reading labs. I was good at it. I could look at a panel and tell you what the numbers meant. What I could not always tell you was what they meant for the person holding them.
That gap is where this work lives.
There is a patient I think about often. Not one person. A kind of person. Their labs come back normal. Their life is quietly disappearing. They are tired in a way that sleep does not fix. They have been told, kindly, that nothing is wrong.
Something is wrong. It simply has not reached the panel yet.
This is what I write about, speak about, and built a practice around. Your symptoms are not random. They are your biography, written in your biology. The body does not malfunction. It escalates. It follows the life you have lived, loyally, until it can no longer keep up.
Why I write

I am a physician first. I trained in the intensive care units of Delhi. There you learn to read a patient with your hands, before the lab calls back. I finished internal medicine residency in New York. I spent more than a decade as a hospitalist across San Antonio’s major health systems. I have taught residents. I have sat with people on the worst day of their lives.
I write because the clinic is too small a room for what I keep learning.
Medicine gave me precision. It did not give me time. The short visit is built to rule out emergencies, not to understand a life. So the understanding leaks out here, into essays.
I hold a third position in most of these debates. The wellness industry preys on a real and underserved need. Mainstream medicine often leaves that same need unmet. Neither the hype nor the dismissal is honest. The honest work is finding what is actually happening in the specific human in front of me.
What I write about
The subjects repeat, because the questions repeat.
There is functional and longevity medicine, treated as a discipline and not a brand. What it means to work on causes upstream instead of effects downstream. Read the functional medicine essays →
There are the drugs everyone is asking about. GLP-1 medications. Peptides. Hormones. What they do well, what they cost the body, and who is selling a shortcut that arrives with a bill. Read the essays on metabolism and medication →
There is the mind the body carries. Grief that shows up as weight. Stress that arrives as chest pain. Trauma that no diet can reach. I do not reframe a person’s life into a diagnosis. I follow the biology back to the biography, honestly.
And there is where medicine is going. Temporal biomarkers, circadian intelligence, and the careful use of AI. I am building some of that at TimeVitality.ai. I stay cautious about it in public, on purpose.
The book
All of it converges in one place. Healing the Split: When Your Biology Is Fighting Your Biography is the fuller argument. It is the book I have been writing, and rewriting, for years, because the subject keeps opening another room.
You can read the chapters as they arrive, and join the newsletter, at healingthesplit.com. The long-form work lands there first.
Speaking and media
I speak to clinicians, to executives, and to rooms that are tired of being sold to. Burnout that is biological. Performance that is sustainable. Medicine that listens. If your stage or your show needs that, write to me at [email protected].
My commentary also appears on Medium, KevinMD, Op-Med, and Substack. Those links are collected on Medium.
If you want to work together
Some readers arrive because they are the patient in the first paragraph. If you want care, not just words, my clinical practice is Prime Vitality Care in San Antonio. You can find it at primevitalitycare.com. The writing is the thinking. The clinic is where it is applied.
Where this goes
Let me return to that patient. The one whose labs are normal and whose life is not.
I cannot promise them an easy answer. I can promise them a real one. Their exhaustion is information. Their body is not betraying them. It is reporting, faithfully, on a life that is asking to change.
Good labs. Bad life. There’s a reason.
That reason is the whole of my work. I am still writing it down.
— Dr. Shiv Goel, San Antonio

