Your Labs Say Normal.

A Biohacking Conference Recap — The Thyroid Conversation Big Medicine Is Not Having

By Lori Finlay, NP, CNS

I want to tell you about a young woman in my neighborhood.

She felt prompted to call me — before we had even met. I love when that happens. God has a way of connecting people who need each other.

She was 32. A former athlete. A cheerleading coach. And in just a few months, she had gained 50 pounds. Out of nowhere. She was exhausted in a way that sleep never fixed. Hair falling out. Feeling completely unlike herself.

She had already seen an endocrinologist. A specialist. And do you know what he said?

“You should feel tired. You’re getting old.”  She was 32 years old.

He handed her a prescription for Synthroid — a synthetic thyroid medication — and sent her out the door. No digging into what was actually shutting her thyroid down. No root cause conversation. Just a pill and a dismissal.

I want to be clear about something right here. Synthroid is a synthetic T4-only medication. It is not bioidentical. Bioidentical thyroid — like NP Thyroid or Armour — contains both T4 and T3 in ratios that more closely match what your body actually makes. That difference matters enormously. And we will get there.

But here is the bigger problem in her case. She did not need any thyroid medication yet. She had mold toxicity and Epstein-Barr virus poisoning her endocrine system. Her thyroid was not failing on its own. It was being crushed by a toxic load nobody had looked for.

She is not unique. She is every third woman I talk to.

And I am so done with it.

My Own Thyroid Journey

I know this territory personally.

When my own health hit rock bottom — when I was on bioidentical cortisol just to function and had started bioidentical hormones — I found out I had hypothyroidism too. My whole endocrine system was falling apart. And my thyroid was caught in the middle of it.

Here is what took me years to figure out: as I detoxed from mold, my thyroid medication needs went down. My thyroid was not broken. It was being suppressed by my toxic load. Big Medicine never looked for that. I had to find it myself.

I am still working on my own thyroid health today. Which is exactly why I went to McCall McPherson’s session at Dave Asprey’s Beyond Biohacking Conference. And everything she shared confirmed what I see in my practice — and then some.

The clinical data and framework in this blog comes from the presentation of McCall McPherson, PA-C — nationally recognized thyroid expert, TEDx speaker, and founder of Modern Thyroid Clinic and Thyroid Nation — at Dave Asprey’s Beyond Biohacking Conference, May 2026. [1]

The Problem With TSH

Here is what happens in most doctor’s offices when you walk in with fatigue, weight gain, hair loss, brain fog, and low mood.

They run one test. TSH. It comes back “normal.” They say you are fine. You go home feeling dismissed — and wondering if it is all in your head.

I hear this every single week.

TSH stands for thyroid stimulating hormone. It shows how hard your brain is pushing your thyroid to work. That is all. It does not tell you how much active thyroid hormone you are making. And it does not tell you if your body can use it.

Think of it this way. TSH tells you how loud your brain is yelling at your thyroid. It does not tell you if your thyroid is listening — or if what it makes is getting where it needs to go.

And here is the part that really gets me. McCall shared this on stage:

“For those on T4-based medications, the worse your body is at using the medication — the better your TSH and T4 will look.” — McCall McPherson, PA-C [1]

Your labs can look perfect while you feel terrible. And your doctor will say everything is fine.

To that I say — this has to stop.

“Normal” Is Not the Same as “Optimal.” Not Even Close.

The “normal” ranges on your lab report are not health goals. They are averages. And here is the part that should make you angry: those averages come from a sick population. [1] “Normal” just means you are not worse than the average unhealthy person.

You can be exhausted, gaining weight, losing hair, and barely functioning — and still be “normal.”

Here is what optimal actually looks like. Print this out. Take it to your next appointment.

Look at TSH. A woman at 4.0 is “normal.” Optimally she should be near 1. That gap — invisible on a standard lab report — can be the difference between a woman who feels like herself and one who cannot get off the couch.

T4 Is Crude Oil. Free T3 Is the Gasoline.

Most doctors prescribe Synthroid — a synthetic T4-only medication. T4 is the inactive form of thyroid hormone. Your body has to turn it into Free T3 — the active form that actually runs your metabolism, your brain, your heart, and your hormones.

Standard medicine gives you the inactive form and hopes your body does the work. But for many women, that conversion is blocked. And adding more T4 into a blocked system does not make more Free T3. [1] It just piles up.

This is why bioidentical thyroid options like NP Thyroid or Armour matter. They contain both T4 and T3 — much closer to what your body naturally makes. Some women simply cannot convert T4 to T3 well enough on their own. Those women need T3 in their medication. Full stop.

You can have all the crude oil in the world — but if you can’t convert it to gasoline, you aren’t going anywhere. — McCall McPherson, PA-C [1]

What blocks the conversion?

• Inflammation and chronic stress — chronic illness, high cortisol, immune activation
• Poor sleep, too much exercise, or not eating enough
• Low key nutrients — selenium, zinc, iron, B vitamins, iodine, tyrosine
• Hormone shifts — pregnancy, breastfeeding, insulin resistance
• Toxins — heavy metals, environmental chemicals, mold exposure [1]

That last one. Mold. The thing that crushed my own thyroid for years. The thing my young neighbor had at 32. It is one of the most common thyroid suppressors I see — and it will never show up on a TSH test.

This Is Not Just About Feeling Tired

I need you to look at these numbers. A struggling thyroid is not just a quality of life problem. It is a longevity problem.

Your Heart

Subclinical hypothyroidism — the “you’re in the normal range” zone — raises the risk of heart attack by 68% and the risk of dying from heart disease by 37%. [2] Even a “mild” thyroid problem puts serious stress on your heart. Over years. Over decades.

Your Brain

Low Free T3 is linked to 1.8 times higher risk of dementia. [3] And 1.6 times higher odds of frailty and mental decline as you age.

Your Metabolism

36% of people with non-alcoholic fatty liver disease have hypothyroidism — many of them “just” subclinical. [4] Subclinical hypothyroidism raises the odds of insulin resistance by 2 to 3 times.

Suboptimal thyroid function compounds over decades — across every system in your body. — McCall McPherson, PA-C [1]

What You Can Actually Do About It

Here is McCall’s 8-step plan — filtered through my own clinical experience:

1.     Get a full thyroid panel. TSH alone is not enough. Ask for Free T4, Free T3, Reverse T3, TPO antibodies, and Tg antibodies. All of them.

2.     Test while on medication. Same lab. Same time of day. Every time.

3.     Aim for optimal — not just normal. Use the table above. Bring it with you.

4.     Check your antibodies. High TPO or Tg antibodies mean your immune system is attacking your thyroid. This is Hashimoto’s. Address it. Do not just watch and wait.

5.     Support your conversion. Cut the blockers — toxins, inflammation, poor sleep, stress. Add the helpers — selenium, zinc, iron, B vitamins, protein, gut health.

6.     Ask about T3-containing medication if T4-only is not working. Bioidentical options like NP Thyroid or Armour are real options. You deserve a provider who will talk about them.

7.     Track symptoms — not just labs. How you feel is data. If your numbers look fine but you do not — keep pushing.

8.     Recheck every 8 to 12 weeks until you are stable and optimized. Not just normal. Optimized.

The Piece Big Medicine Keeps Missing

Every week I talk to women whose doctors told them their labs are fine.

What I look for is the whole picture. The thyroid never sits alone. It lives inside a web of connected issues — adrenal health, toxin load, hormone shifts, genetic variants that slow detox, and a nervous system that has been running on overdrive for years.

My young neighbor? Once we found her real root causes — the mold, the EBV, the endocrine chaos that followed — her thyroid came back online. Not because we added more hormones. Because we stopped poisoning the system.

She did not have a Synthroid deficiency. She had a root cause nobody looked for.  That is the story of too many women sitting in too many exam rooms right now.

Women are not getting the thyroid care they deserve. I see it every week. And I am not going to stop saying it.

That is why I went to this conference. That is why I took these notes. And that is why I am sharing this with you.

  Consider This

• When did you last get a full thyroid panel — not just TSH? Free T4, Free T3, Reverse T3, and both antibodies? If never — start there.
• Are you on thyroid medication and still feeling off? Your dose or medication type may not be right for your body. Compare your results to the optimal targets above.
• Is there a toxin story in your history? Mold, heavy metals, chronic infection like EBV? These suppress thyroid in ways no medication can fix alone.
• Book your Free Vitality Assessment Call at ConsultLori.com. Let’s look at your full picture together.

For the women who refuse to let their lifespan outrun their vitality span,

Lori Finlay, NP, CNS

References

References are cited in APA 7th edition format. Sources cited multiple times retain their original reference number throughout.

1.  McPherson, M. (2026, May). How medicine got hypothyroidism wrong — and what we can do about it [Conference presentation]. Dave Asprey’s Beyond Biohacking Conference.

2.  Rodondi, N., den Elzen, W. P. J., Bauer, D. C., Cappola, A. R., Razvi, S., Walsh, J. P., & Gussekloo, J. (2010). Subclinical hypothyroidism and the risk of coronary heart disease and mortality. JAMA, 304(12), 1365–1374.

3.  Chaker, L., Wolters, F. J., Bos, D., Korevaar, T. I. M., Hofman, A., Franco, O. H., & Ikram, M. A. (2016). Thyroid function and the risk of dementia: The Rotterdam Study. Neurology, 87(16), 1688–1698.

4.  Pagadala, M. R., Zein, C. O., Dasarathy, S., Yerian, L. M., Lopez, R., & McCullough, A. J. (2012). Prevalence of hypothyroidism in nonalcoholic fatty liver disease. Digestive Diseases and Sciences, 57(2), 528–534.

5.  El-Sayed, S., Ismail, A. A., Seddiek, H., & El-Sayed, H. (2023). Subclinical hypothyroidism and insulin resistance in Type 2 diabetic patients. European Journal of Medical Research, 28(1), 312.

6.  Wichman, J., Winther, K. H., Bonnema, S. J., & Hegedüs, L. (2016). Selenium supplementation significantly reduces thyroid autoantibody levels in patients with chronic autoimmune thyroiditis: A systematic review and meta-analysis. Thyroid, 26(12), 1681–1692.