Gladden Longevity

Gladden Longevity Board-certified longevity physician helping you perform like you're 30 when you're 100. Peptides | Hormones | NAD+ | Cellular Health | Dallas, TX

**"It's hell to get old."**

My grandmother told me that for years. And as a heart doctor, I watched it happen to my patients every day. But I refused to accept it. After 25 years as a board-certified interventional cardiologist and co-founder of The Heart Hospital Baylor Scott & White, I left traditional medicine to focus on one question: **How good can we be?**

That question led me to start **G

ladden Longevity** in Dallas, Texas. Now I help people stay young for a lifetime using cutting-edge longevity science.

**What we do:**
šŸ§¬ Peptide Therapy ā€“ Regenerate tissue and boost performance
āš” Hormone Optimization ā€“ Restore energy, clarity, and vitality
šŸ”¬ NAD+ Protocols ā€“ Boost cellular energy and DNA repair
šŸ’Ŗ Cellular Health ā€“ Reverse aging at the root cause

**My mission:**
Make 100 the new 30. Help people perform like they're 30 when they're 100. I'm living proof it works. I'm surfing, mountain biking, and snowboarding better than I did 20 years ago. If you're done accepting "normal aging" and ready to stay young for a lifetime, you're in the right place.

šŸ“ Dallas, TX | Serving clients worldwide
šŸ“š Author of *100 Is the New 30*
šŸ”— [https://gladdenlongevity.com](https://gladdenlongevity.com/)
šŸ“± Follow us on Instagram:

05/22/2026

The sleep industry sold you sedation and called it rest.

Ambien, Xanax, and most sleep aids work by forcing unconsciousness, not by repairing the biological process your brain actually needs.

That distinction is destroying peopleā€™s cognitive health.

Natural sleep is a sequence.

Light sleep ā†’ REM ā†’ Deep slow-wave sleep.

Each stage performs a job the others canā€™t.

Sedatives chemically hijack that sequence.

When REM is suppressed, your brain loses the ability to move short-term memories into long-term storage.

When deep slow-wave sleep is suppressed, the glymphatic system (your brainā€™s internal waste-clearance network) never activates.

Toxic debris and amyloid plaques that built up during the day never get flushed.

Poor glymphatic drainage can increase your dementia risk by 30 percent.

The prescription:
It didnā€™t cure your insomnia. It masked a stressed nervous system while the damage compounded quietly.

Your brain doesnā€™t need to be knocked out. It needs the conditions to get there on its own.

Try this instead:
ā†’ Melatonin as a circadian reset and master anti-inflammatory that protects brain mitochondria and keeps anti-aging stem cells alive

ā†’ L-Theanine and Magnesium Threonate to block the excitatory pathways keeping you wired

ā†’ Brainwave entrainment to guide your brain into the Delta waves required for deep, restorative sleep

What are you currently taking to sleep, and has it actually left you feeling rested?

05/21/2026

I was eating the cleanest diet of my life.

Fermented vegetables, kombucha, miso, sauerkraut, spinach.

The foods the wellness world calls superfoods. And I was more anxious and more depressed than I had ever been.

For years I assumed it was the stress. I was running a network of ten cardiology offices.

The pressure was real. But this anxiety was not situational. It was there when everything was calm. It was biological.

What gave me the answer was not another consultation. It was a genetic map.

When I sequenced my DNA, I found a homozygous mutation in my MTHFD1 gene, the enzyme responsible for the methylation cycle (the process your body uses to produce and regulate neurotransmitters like serotonin and dopamine).

My specific mutation meant my brain could not efficiently clear glutamate and histamine.

Those are highly excitatory compounds found in high concentrations in fermented foods, tomatoes, eggplant, and spinach.

Every meal I was building as an act of optimization was actively over-exciting my nervous system and starving my serotonin production.

The superfoods were the source.

I stopped the high-glutamate diet. I added targeted B-vitamins and SAMe to bypass the genetic block.

The anxiety stopped, the depression lifted, and my mind became razor-sharp.

As long as I stay consistent, it stays that way.

Generic nutrition advice is built for the average genome. Most people eating those foods will feel fine.

For a portion of the population, the methylation cycle is broken in a way that makes widely celebrated health foods actively harmful. The only way to know which category you are in is to look at your actual biology.

What I found in my own genome is one piece of what a complete biological deconstruction reveals.

On May 26 Iā€™m hosting a live masterclass on what else it uncovers, specifically what your body has been signaling that nobody has ever looked at as a whole picture.

Comment BIO26 and Iā€™ll send you the link.

05/21/2026

She was 18 years old with intermittent blindness, early MS, and blood work that told her doctors her metabolism was perfect.

Her fasting blood sugar was 88. Her A1C was 5.3. By every standard measure she was metabolically fine, so her doctors treated her for a neurological disease and moved on.

We ran a different test. Not a fasting panel. A 2-hour glucose tolerance test with an insulin curve, which tracks how your body responds to sugar in real time rather than how it behaves after a 12-hour fast.

Her fasting insulin was 13, which looked unremarkable. One hour after consuming glucose, it was 230. At the two-hour mark, it was still 220.

A healthy insulin response peaks around 65. Hers hit 230.

She had severe insulin resistance that had been completely invisible to every test her doctors ran. And that insulin resistance was not separate from her neurological symptoms. It was driving them.

92 percent of the population is not metabolically healthy. When your doctor tells you your labs are normal, they are grading you on a curve against a population that is already sick. Normal and healthy are not the same number. They have not been for a long time.

The test that changed everything for her is not on a standard panel.

Comment APPLY and Iā€™ll send you the link to see what a complete biological assessment would look like for you.

05/19/2026

She was 55 years old and had never felt peace.

She had been told for 30 years that she had depression. She had the antidepressants, the therapy, decades of psychiatric care, and none of it had ever produced lasting relief.

She also had a wearable device that told her she was healthy. High heart rate variability, strong recovery scores. Her data looked like a well person, so she assumed the problem was just her brain.

When she came to our clinic, we ran a 10-channel biofeedback assessment, a clinical-grade test that maps the autonomic nervous system (the part of your nervous system governing heart rate, breathing, stress response, and recovery). What it found had nothing to do with depression.

Her HRV was high, but not in the way a healthy body produces it. Her heart rate had completely decoupled from her respiratory rate. The two systems had stopped communicating. What looks like resilience on a wearable can mask a nervous system in complete failure mode.

We traced it back to age 13. She had fallen on ice and cracked her head open. That traumatic brain injury had quietly taken her autonomic nervous system offline and locked her body into a state of chronic hypervigilance for 42 years. Nobody had ever connected the two.

We stopped treating her for depression. We started biofeedback to retrain her nervous system from the ground up.

After one of her early sessions, she turned to the clinician and said she felt something strange. She wanted to know if something was wrong.

The clinician told her nothing was wrong.

What she was feeling was relaxation. She had lived inside a body on fire for so long that peace had become unrecognizable.

Thirty years of the wrong answer.

On May 26 Iā€™m hosting a live masterclass on what a complete biological deconstruction reveals about your body when someone finally looks at the whole picture instead of the pieces.

Comment BIO26 and Iā€™ll send you the link.

05/14/2026

I was running a 10-office, 12-doctor cardiology group when my body started failing in ways I couldnā€™t explain.

I woke up depleted every morning. The weight kept climbing.

My father had died with dementia and I could feel myself moving toward it.

I got my labs done.

Everything came back normal.

My physician told me I was just getting older and suggested an antidepressant.

I walked away from the practice Iā€™d built.

For two and a half years I deconstructed my own biology with tools my former field didnā€™t use.

I found a DIO2 genetic defect. DIO2 is the gene that converts inactive thyroid hormone into the active form your brain actually uses.

My levels looked fine on a standard panel. My brain was starving

Six months after addressing it, I lost 20 pounds of fat and added 10 pounds of muscle.

The fog lifted.

Iā€™m 72 now and train at levels that compete with people half my age.

My labs were normal. The gap between normal and optimal was where my real biology lived.

On May 26 Iā€™m hosting a live masterclass on what a complete biological deconstruction reveals.

Comment BIO26 and Iā€™ll send you the link.

05/13/2026

I have been a fan of molecular hydrogen since 2015. The reason is what it does at the cell level.

Caffeine works in the brain. It blocks the signal that tells you youā€™re tired, so the fatigue gets quieter.

The fatigue itself is still there.

āš” Hydrogen works in the cell.

H2 is molecular hydrogen, the smallest molecule your body uses.

When your cells run hard, they create oxidative stress, the cellular wear that drives the fatigue, the fog, and the slow recovery that builds up with age.

H2 clears that wear. It takes the harmful particles your cells produce, called free radicals, and turns them into water.

That is what happens when a small molecule cleans up the damage that comes with being alive.

You recover faster after exertion.
You think clearer through long stretches of focus.
You age slower because your cells are not running on accumulated wear.

I wrote a guide on how to use it. Comment H226 below and I will send it to you.

05/12/2026

Your chronological age tells me almost nothing about how your body is actually performing.

What matters is your mosaic of biological ages, the 63 different systems inside your body that are each aging at their own speed.

Your cardiovascular system, your metabolism, your immune function, your cellular health, all moving at different rates, and you are only as young as your oldest one.

Most people have never seen this data.

When they do, it completely changes how they think about their future because it shows exactly where decline is happening before a single symptom ever appears.

That window is where real prevention lives.

At Gladden Longevity, we measure your biological ages, identify which systems are running the clock fastest, and build a program around what your body actually needs, not what your birthday says.

05/12/2026

Antidepressants, anti-anxiety medication, and birth control, all prescribed to manage worsening mood, focus, and anxiety symptoms that kept escalating despite treatment. The protocol kept expanding. Nobody stopped to ask whether the original diagnosis was right.
Nobody had run a hormone metabolite panel. Nobody had looked at how her brain genetically processes the hormones it depends on.
When I did, the picture changed.
She carried a fast-metabolizing COMT gene, meaning her body burned through neurotransmitters and key hormones faster than it could replace them. As her hormones naturally began to decline in early perimenopause, her brain was left without the raw material it needed to function. The symptoms that looked like anxiety, mood disorder, and attention problems were her biology signaling a deficit that no psychiatric medication was designed to address.
Once we treated the actual driver, the symptoms that years of prescriptions hadn't touched began to resolve.
She was hormonally starving. Years of psychiatric medication was never going to fix that.
If you've been through a version of this, the escalating prescriptions, the shifting diagnoses, the treatment that doesn't seem to touch what's actually wrong, that pattern has a biological explanation that most testing never looks for.
Comment APPLY and my team will reach out to walk you through what a complete biological evaluation covers and whether it's the right next step for where you are.

05/11/2026

Chronic stress is the only medical emergency routinely dismissed as a character flaw.

Weā€™ve been taught to treat it like a scheduling problem. Manage your time better, meditate more, learn to say no.

And when none of that works, we quietly conclude that some people just arenā€™t built to handle pressure.

That framing is keeping people sick.

Chronic stress hormones, primarily cortisol, are neurotoxic at sustained levels. They physically shrink the hippocampus, the region of the brain responsible for memory and learning.

They deplete the s*x hormones that regulate mood, energy, and libido.

They accelerate biological aging at a rate that shows up clearly in the right tests.

The people I work with carrying the most chronic stress arenā€™t fragile.

Theyā€™ve handled more pressure than most people face in a lifetime.

What theyā€™re dealing with is a body that got locked into an emergency state it was never designed to stay in permanently.

Chronic stress is one driver.

On May 26 Iā€™m hosting a live masterclass on finding the rest of them. Specifically, what a complete biological deconstruction reveals about your body that your cardiologist, hormone clinic, and functional medicine doctor each own a piece of but nobody has ever looked at together.

That gap is almost always findable.

Comment BIO26 and Iā€™ll send you the link.

05/10/2026

The 7 numbers that tell you if youā€™ll still be sharp, strong, and energetic in your 70s.

Most physicals donā€™t run any of them.

1ļøāƒ£ Fasting insulin, not just glucose
Insulin in your blood after an overnight fast.
Glucose can look normal for a decade while insulin quietly climbs.

By the time glucose rises, youā€™ve been losing energy, gaining belly fat, and crashing in the afternoon for ten years.

2ļøāƒ£ ApoB, not just cholesterol
ApoB counts the artery-clogging particles in your blood.
A standard panel can say youā€™re ā€œfineā€ while ApoB shows youā€™re building toward a cardiac event in your 60s.

3ļøāƒ£ VO2 max, not just resting heart rate
The most oxygen your body can use during hard effort.
This is the difference between hiking with your grandkids at 75 versus needing to sit down halfway up.

Itā€™s the strongest predictor of how long youā€™ll live.

4ļøāƒ£ Grip strength, not just body weight
How much force your hand can produce.

It tells you whether your muscle and nervous system are aging on schedule or 15 years ahead of it.

People with weak grip in their 40s lose their independence in their 70s.

5ļøāƒ£ Heart rate variability, not just resting heart rate
The variation in time between your heartbeats.

It tells you whether last nightā€™s wine, last weekā€™s travel, or this monthā€™s stress is wrecking your recovery.

Your body whispers this number long before you feel tired.

6ļøāƒ£ Testosterone or estradiol, not just ā€œnormal rangeā€
The dominant s*x hormones in men and women.

They drive your energy in the morning, your strength in the gym, your sharpness in meetings, and your drive in the bedroom.

ā€œNormal for your ageā€ usually means quietly declining for ten years.

7ļøāƒ£ Biological age vs. chronological age
Your chronological age is your birthday count.

Your biological age is how old your body is at the cellular level.

The gap is the report card on every choice youā€™re making.
You can be 52 with the body of a 38 year old, or a 65 year old.

The numbers tell you which one you are.

Comment START26 if you want to know where each of these stands for you, and what a precision protocol looks like built around your specific re

05/08/2026

Every single item is the same decision in a different costume.

The choice between a small dose of friction now, or a much larger bill later.

Cooking with seed oils is fine today.

Itā€™s inflammation accumulating in tissues you canā€™t see for thirty years. Scrolling at night is fine today.

Itā€™s cortisol disrupting the hormonal cascade that determines how youā€™ll feel at 60.

Skipping strength training this week is fine. Itā€™s sarcopenia at 70 that takes away your independence at 80.

None of these things hurt you in the moment. Thatā€™s the trap.

Aging isnā€™t something that happens to you in your seventies. Itā€™s something youā€™re either accelerating or decelerating right now, in choices so small they donā€™t feel like choices at all.

The patients who age the best arenā€™t the ones with the most discipline. Theyā€™re the ones who stopped negotiating with the small stuff.

Iā€™m walking through the full longevity framework we use with patients in a free webinar.

The systems we test, the biomarkers that actually predict how youā€™ll age, and the daily protocols we build for patients who want to live well past 100.

Comment BIO26 and Iā€™ll send you the link to the masterclass that walks you through exactly which systems to track, what the numbers should look like at every decade, and the protocols we use to slow biological aging in real patients.

Address

200 O'Connor Ridge Boulevard Suite 100
Irving, TX
75038

Opening Hours

Monday 8am - 5pm
Tuesday 8am - 5pm
Wednesday 8am - 5pm
Thursday 8am - 5pm
Friday 8am - 5pm

Telephone

+19723108916

Website

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