Three Kinds of Hunger, and Only One of Them Is About Food
Mouth hunger, stomach hunger, and heart hunger feel similar and need completely different responses. How to tell them apart in the moment, from an endocrinologist.
Read article →The Dr. Z Journal
Health, understood.
Thoughtful, evidence-led guidance to help you understand your body and make confident decisions about your health.
Explore the journal
Latest insights
Clear answers for complex health questions, written with care.
The Weekend Lie-In Does Not Undo the Week
Catching up on sleep at the weekend repairs less than it feels like it does, and the irregularity itself carries a cost. Why a fixed wake time may matter as much as hours slept.
Read article →
Four Things to Learn While the Medication Is Still Working
Two thirds of the weight lost on semaglutide came back within a year of stopping it. That is not drug failure. It is a missing layer of care, and here is what belongs in it.
Read article →
Testosterone Is Not Only a Men's Hormone
Women make testosterone too, and both too little and too much cause real symptoms. An endocrinologist on what the test can tell you, what it cannot, and what treatment the evidence actually supports.
Read article →
Sleep Is an Endocrine Event
Sleep loss measurably reduces insulin sensitivity, raises cortisol, and increases hunger. Why sleep belongs in a metabolic treatment plan rather than beside it.
Read article →
Perimenopause and the Metabolic Shift Nobody Warned You About
Weight redistribution, insulin resistance, and muscle loss in perimenopause are hormonal, not a failure of willpower. What changes and what to do about it.
Read article →
Hashimoto's: What It Means When the Immune System Turns on the Thyroid
Hashimoto's thyroiditis is the most common cause of hypothyroidism. What the antibodies mean, how the disease progresses, and what is worth doing early.
Read article →
The GLP-1 Pill Is Here. What It Changes, and What It Does Not
Oral semaglutide 25 mg was approved for chronic weight management. An endocrinologist explains the trial results, the dosing rules, and who it suits.
Read article →
I Want a Faster Metabolism But I Do Not Know Where to Begin
What metabolic rate really is, why crash dieting slows it, and the small number of changes that reliably raise daily energy expenditure.
Read article →
What Regulation Actually Feels Like
Many people have been dysregulated so long they mistake it for their personality. What a regulated nervous system feels like, and how it affects metabolic health.
Read article →
High Cortisol Is a Metabolic Blocker
You can eat well, train hard, and still not lose fat if your body is holding a chronic stress state. How cortisol interferes with metabolism and what changes it.
Read article →
You Are on Thyroid Medication and You Still Feel Off. Here Is Why That Happens
Some patients on levothyroxine with a normal TSH still feel unwell. An endocrinologist walks through absorption, timing, T3 conversion, and what else to check.
Read article →
The Muscle Question Nobody Raises Before Starting a GLP-1
A meaningful share of weight lost on GLP-1 medications is lean tissue. Here is why it happens, why it matters metabolically, and how to prevent most of it.
Read article →
Insulin Resistance: The Ten Years Before Anyone Says the Word Diabetes
Insulin resistance develops silently for years before glucose rises. Learn the early signs, the tests that catch it, and what actually reverses it.
Read article →
The Belief System Underneath the Behavior
Most patients already know what to eat. An endocrinologist on why knowledge rarely changes behavior, and what sits underneath the habits driving metabolic disease.
Read article →