DR. AREN NILSSON

Writing

I write about the things I think about. Which, depending on the day, ranges from mitochondrial biogenesis to what it means to be a good father to why the healthcare system needs to burn down and be rebuilt from the root.

These articles are for people who want depth, not soundbites. If you're looking for "10 tips to boost your metabolism," you're in the wrong place. If you want to understand why your metabolism is broken in the first place and what to actually do about it, pull up a chair.

What My Mother’s Death Taught Me About the Failure of Symptom Management
Personal Growth

What My Mother’s Death Taught Me About the Failure of Symptom Management

This is the hardest thing I’ve ever written. My mother spent 20 years in a system that managed her symptoms and never found the cause. She deserved better. So does everyone else.

September 20258 min read
Root-Cause Medicine Is Not Alternative Medicine. It’s Better Medicine.
Root-Cause Medicine

Root-Cause Medicine Is Not Alternative Medicine. It’s Better Medicine.

The false dichotomy between conventional and alternative medicine is keeping people sick. Root-cause medicine isn’t anti-establishment. It’s what the establishment should have been doing all along.

October 202511 min read
You Don’t Have a Willpower Problem. You Have a Mitochondrial Problem.
Performance

You Don’t Have a Willpower Problem. You Have a Mitochondrial Problem.

The conversation about discipline and motivation is missing the most important variable: cellular energy production. If your mitochondria aren’t functioning, your willpower is irrelevant. Here’s what to do about it.

November 202512 min read
The Compliant Brain: How Antidepressants May Reshape What You're Willing to Believe
Neuroscience

The Compliant Brain: How Antidepressants May Reshape What You're Willing to Believe

One in eight American adults takes an SSRI. The neuroscience of how these drugs alter emotional processing, suppress curiosity, and may prime the brain for compliance with fear-based messaging.

March 202610 min read
The 63 ng/dL Wake-Up Call: Why Every Man Should Get His Hormones Checked
Root-Cause Medicine

The 63 ng/dL Wake-Up Call: Why Every Man Should Get His Hormones Checked

At 19, my testosterone was lower than most 80-year-olds. Here’s how I found out, what it was doing to my brain and body, and why the medical establishment’s “normal range” is failing millions of men.

January 202610 min read
Fluoride Is Blocking Your Thyroid: The Halogen Competition Nobody Discusses
Root-Cause Medicine

Fluoride Is Blocking Your Thyroid: The Halogen Competition Nobody Discusses

Fluoride competes with iodine at the sodium-iodide symporter, the gateway to thyroid hormone production. This is published receptor pharmacology, not conspiracy. Here’s the biochemistry, the clinical data, and what to do about it.

February 202614 min read
Six Reasons Your Thyroid Labs Come Back 'Normal' While You Feel Like Hell
Root-Cause Medicine

Six Reasons Your Thyroid Labs Come Back 'Normal' While You Feel Like Hell

Most thyroid testing only catches 1 of 6 dysfunction patterns. Here's what your doctor isn't looking for, and why it's keeping you sick.

February 202612 min read
BPC-157 Gave Me My Knees Back: A Doctor’s Personal Experience with Peptide Therapy
Biohacking

BPC-157 Gave Me My Knees Back: A Doctor’s Personal Experience with Peptide Therapy

After bilateral patellar tendon ruptures and a decade of chronic pain, peptide therapy reduced my symptoms by 80%. Here’s the science, the protocol, and what I wish I’d known sooner.

December 202511 min read

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