Hormones Matter

Where health, hormones, and a whole bunch of other stuff, make sense.

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Hormones Matter

Chandler Marrs, PhD

Chandler Marrs MS, MA, PhD. Founder, writer, editor of HM. Co-Author of Thiamine Deficiency Disease, Dysautonomia, and High Calorie Malnutrition.

Vitamin D, costochondritis, chest pain

Vitamin D Deficiency and Costochondritis Mimicking Heart Symptoms?

by Chandler Marrs, PhD
February 2, 2026
1.8K views

I am currently working with an individual experiencing a number of symptoms that can be linked to variety of nutrient deficiencies and

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neuropathic pain, adenomyosis, endometriosis

Notes on Neuropathic Pain in Adenomyosis and Endometriosis

by Chandler Marrs, PhD
January 26, 2026
1.3K views

Every now again, I stumble upon research that upends my thinking about a particular topic. Over the last few months there have

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thiamine testing

Thiamine Testing in Clinical Practice

by Chandler Marrs, PhD
January 20, 2026
7.9K views

In Thiamine Deficiency in Modern Medical Practice and Threats to Thiamine Sufficiency in the 21st Century, I introduced the concept that thiamine

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mitochondrial illness

Mitochondrial Capacity and Thiamine: Notes from a Presentation

by Chandler Marrs, PhD
January 15, 2026
2.4K views

Mid December, I gave a talk on mitochondrial capacity and thiamine’s role therein (included below). My argument was that mitochondrial capacity e.g.

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fast food

Fast Food, Money, and Metabolic Disease: An American Trifecta

by Chandler Marrs, PhD
January 14, 2026
13.2K views

So many of the disease processes that plague modern patients involve interactions between the host and his/her environment. Diet, lifestyle, pharmaceutical and

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menstrual blood stem cells

Menstrual Blood Contains Stem Cells

by Chandler Marrs, PhD
January 5, 2026
1.2K views

A paper published in 2007 reported finding stem cells in menstrual blood. In the almost two decades since, others have shown that

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mitochondria energy

Mitochondrial Energy, Not Genetics, Underlies Health and Disease

by Chandler Marrs, PhD
December 31, 2025
20.8K views

Over the course of writing our book, Thiamine Deficiency Disease, Dysautonomia, and High Calorie Malnutrition, I had the privilege of reading hundreds

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kickboxing, basal ganglia, narcolepsy

Narcolepsy, Basal Ganglia, Mitochondrial Fitness, and Kickboxing

by Chandler Marrs, PhD
December 11, 2025
13.1K views

Several years ago, when I just beginning to understand the role of nutrient co-factors in mitochondrial health, I was working with a

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