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Your brain's "sex soldiers" are going AWOL 🧠💔
Why great sex feels impossible after 40
Federick Gonzalez
July 06, 2025
Hey man!
Let me tell you about Marcus, a 45-year-old retired police officer...
Who thought his best days were behind him.
After 20 years of protecting and serving on the streets of Miami...
“We had a good run”…
He found himself sitting in his suburban home...
feeling like a shadow of the cop he once was.
Truth is, Marcus was fighting a silent war against his own body chemistry...
His chronic stress response hijacking his sexual systems... [9]
A battle that millions of men over 40 are losing every single day.
His biggest criminal wasn't hiding in some dark alley...
It was creeping in his own bedroom. 😔
Marcus's sex drive had gone AWOL...
And his wife was starting to wonder if he'd lost interest in her.
“Hey… no flirting… just kidding”
Truth is, Marcus was fighting a silent war against his own body chemistry...
A battle that millions of men over 40 are losing every single day.
But here's what Marcus discovered...
Your brain is like a police dispatch center...
And when it comes to sexual satisfaction, there are 5 key "officers" running the show:
Dopamine - The Motivation Detective 🎯
Serotonin - The Satisfaction Sergeant 😊
Oxytocin - The Bonding Beat Cop 💕
Testosterone - The Tactical Commander 💪
Endorphins - The Pleasure Patrol 🎉
When these neurochemical officers work together...
You experience mind-blowing sexual satisfaction that would make even James Bond jealous.
But when they're out of sync?
You're left feeling like you're firing blanks. 💔
The Dopamine Deception 🎰
Here's where it gets interesting...
Dopamine isn't just about pleasure - it's about the PURSUIT of pleasure [1].
Think of it like a detective on a case...
The excitement isn't in closing the file...
It's in the chase itself.
That's why porn addiction is so devastating...
It hijacks your dopamine system faster than a high-speed pursuit.
Every click...
Every video...
Every artificial stimulation...
Floods your dopamine receptors with 200-300% higher levels than natural sex [2][11][12].
It's like training your brain to expect a SWAT raid...
When real sex is more like a routine traffic stop.
The Serotonin-Satisfaction Connection 🔐
But here's the plot twist...
While dopamine gets you excited about sex...
Serotonin is what makes you feel SATISFIED afterward. It's the same neruotransmitter that regulates mood, sleep, and appetite [3].
Low serotonin = feeling empty after sex...
Like you just made an arrest but forgot why you were chasing the bad guy.
RANGES That Matter:
Optimal Serotonin: 40-200 ng/mL [4]
Optimal Dopamine: 0 to 30 pg/mL (195.8 pmol/L) in blood [5][13]
Optimal Total Testosterone: 300-720 ng/dL (age 40-49) [6]
Optimal Free Testosterone: 5.4-19.0 pg/mL (age 40-49) [6]
TESTS You Need:
Comprehensive Hormone Panel - Tests testosterone, estradiol, SHBG
Neurotransmitter Testing - Measures dopamine, serotonin, GABA
Cortisol Rhythm Test - Shows stress hormone patterns
Thyroid Panel - TSH, Free T3, Free T4
Prolactin Test - High levels kill sex drive [10]
The Oxytocin Override 💏
Remember how we talked about pair bonding?
Well, oxytocin is the chemical responsible...
And here's the thing:
Men release... 3-5 times MORE oxytocin during sex than any other activity [7].
Crazy, right?...
It's like your brain's way of saying "ARREST HER, OFFICER!"
Even when your logical mind knows she's just a casual fling.
The Endorphin Explosion 💥
Endorphins are your body's natural morphine...
Released during orgasm at levels 200% higher than during exercise [8].
They're what make you feel like Superman after great sex...
Or leave you feeling depleted after mediocre encounters.
The 3-Step Sexual Satisfaction Protocol 🎯
Here's what Marcus did to reclaim his sexual superpowers:
Step 1: The Dopamine Detox 🚫
No porn for 90 days
Limited social media (it's digital crack)
Cold showers to reset dopamine receptors
Step 2: The Serotonin Surge 📈
Morning sunlight exposure (20 minutes)
Tryptophan-rich foods (turkey, eggs, salmon)
Regular sleep schedule (in bed by 10 PM)
Step 3: The Testosterone Tactical Plan 💪
Heavy compound lifts 3x per week
Vitamin D3 supplementation (4000 IU daily)
Zinc and magnesium before bed
The result?
Marcus went from sexual MIA to sexual MVP...
(That's "Most Virile Performer" for those keeping score) 😎
His wife thought he'd discovered some secret police-grade Viagra...
But all he did was hack his brain chemistry.
The Dark Side of Modern Sex 🌑
Here's what Big Pharma doesn't want you to know...
Every time you pop a blue pill...
You're putting a band-aid on a biochemical wound.
It's like trying to stop crime with more donuts...
Instead of training better cops.
The real battle for sexual satisfaction...
Happens between your ears, not between your legs.
Master your neurochemistry...
And you'll have the sexual firepower of a man half your age.
Ignore it?
And you'll be another casualty in the war against masculine vitality.
Your mission... IS TO..
...take control of your sexual biochemistry before it's too late.
To your neurochemical dominance,
Mens Health Secrets
–Live Past 100
P.S. Tomorrow, I'm revealing "How Brain Chemicals Control Your Sexual Behavior"... including the shocking truth about why some men become simps... while others become sexual alphas. The difference? It all comes down to one specific neurotransmitter ratio...
P.P.S. Boring disclaimer: Always check with your doctor... before you start any new health protocol or treatment. This includes any recommendations from our newsletter (Mens Health Secrets). This information is for entertainment and educational purposes only... and is not a substitute for professional medical advice. Mens Health Secrets is not legally responsible for any actions you do... or not do from reading our newsletter.
P.P.P.S. >>> Go here to subscribe to our Mens Health Secrets YouTube Channel if you haven't yet... leave a comment... and level up your Mens Health knowledge to live longer.
Medical References:
[1] Berridge, K. C., & Robinson, T. E. (2016). Liking, wanting, and the incentive-sensitization theory of addiction. American Psychologist, 71(8), 670-679. https://doi.org/10.1037/amp0000059
[2] Hilton, D. L. (2013). Pornography addiction - a supranormal stimulus considered in the context of neuroplasticity. Socioaffective Neuroscience & Psychology, 3(1), 20767. https://doi.org/10.3402/snp.v3i0.20767
[3] Bakshi A, Tadi P. Biochemistry, Serotonin. [Updated 2022 Oct 5]. In: StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2025 Jan-. Available from: https://www.ncbi.nlm.nih.gov/books/NBK560856/
[4] Jordi Boix, Omar Cauli, Alteration of serotonin system by polychlorinated biphenyls exposure, Neurochemistry International, Volume 60, Issue 8, 2012, Pages 809-816, ISSN 0197-0186, https://doi.org/10.1016/j.neuint.2012.03.003.
[5] Eisenhofer, G., Kopin, I. J., & Goldstein, D. S. (2004). Catecholamine metabolism: a contemporary view with implications for physiology and medicine. Pharmacological Reviews, 56(3), 331-349. https://doi.org/10.1124/pr.56.3.1
[6] Travison, T. G., Vesper, H. W., Orwoll, E., Wu, F., Kaufman, J. M., Wang, Y., ... & Bhasin, S. (2017). Harmonized reference ranges for circulating testosterone levels in men of four cohort studies in the United States and Europe. The Journal of Clinical Endocrinology & Metabolism, 102(4), 1161-1173. https://doi.org/10.1210/jc.2016-2935
[7] Carmichael, M. S., Humbert, R., Dixen, J., Palmisano, G., Greenleaf, W., & Davidson, J. M. (1987). Plasma oxytocin increases in the human sexual response. The Journal of Clinical Endocrinology & Metabolism, 64(1), 27-31. https://doi.org/10.1210/jcem-64-1-27
[8] Esch, T., & Stefano, G. B. (2004). The neurobiology of pleasure, reward processes, addiction and their health implications. Neuroendocrinology Letters, 25(4), 235-251. https://pubmed.ncbi.nlm.nih.gov/15361811/
[9] Harvard Medical School. (2020). Understanding the stress response. Harvard Health Publishing. https://www.health.harvard.edu/staying-healthy/understanding-the-stress-response
[10] Cleveland Clinic. (2024, December 24). Hyperprolactinemia. https://my.clevelandclinic.org/health/diseases/22284-hyperprolactinemia
[11] Shu Q, Tang S, Wu Z, Feng J, Lv W, Huang M and Xu F (2025) The impact of internet pornography addiction on brain function: a functional near-infrared spectroscopy study. Front. Hum. Neurosci. 19:1477914. https://doi.org/10.3389/fnhum.2025.1477914.
[12] Volkow, N., Wang, G., Fowler, J., Tomasi, D., and Telang, F. (2003). Addiction: Beyond dopamine reward circuitry. Proc. Natl. Acad. Sci. U S A. 108, 15037–15042. https://doi.org/10.1073/pnas.1010654108.
[13] MedlinePlus. (2023, February 28). Catecholamine blood test. U.S. National Library of Medicine. https://medlineplus.gov/ency/article/003561.htm