If you're training BJJ over 40 — or any combat sport past 35 — and your hormones are working against you instead of for you, this is the system that changes that. I'm 47, brown belt under Vagner Rocha, training five to seven times a week at one of the most competitive academies in South Florida. No TRT. No pharmaceutical shortcuts. What I have is a three-pillar protocol built from peer-reviewed research and fifteen years of field-testing it on myself. This is that protocol.
The mainstream narrative around testosterone and midlife is one of inevitable decline — that after 40 your hormones start falling and your only real option is clinical intervention. I am living proof that is largely wrong. The rate of hormonal decline is almost entirely within your control if you address the right levers. Sleep. Nutrition. Training. In that order. Always in that order.
Everything in this post maps directly onto the free 14-Day Hormone Reset guide at joshbutton.com/hormone-reset. The guide gives you the daily implementation calendar — every protocol scheduled, every day mapped. This post gives you the science and the reasoning behind it. Use both.
"Getting older is a fact. Feeling broken is optional."
— Josh Button · @thatjiujiteiro · Hard to Kill in MidlifeSleep Is Your Primary Hormone Production Window
Nothing else in this protocol matters if sleep is broken. I want to say that clearly before anything else. Sleep is not recovery time — it is the active production window for testosterone, human growth hormone, and every anabolic signal your body runs on. Get sleep wrong and the other two pillars work at a fraction of their potential.
Here is the mechanism that changed how I think about sleep entirely: the majority of daily testosterone release occurs during sleep, concentrated in the early hours of the night. Disrupt the timing, the duration, or the quality of that window and you are directly suppressing the hormonal output your training depends on. And cortisol — testosterone's direct biological enemy — spikes with sleep deprivation and stays elevated, suppressing testosterone synthesis through the hypothalamic-pituitary-testicular axis.
Same bedtime, same wake time, seven days a week. Not close to the same — the same. Your circadian system runs on a roughly 24-hour clock and it needs a consistent anchor to time hormone release correctly. When that anchor moves, cortisol rhythm, melatonin release, and the nocturnal testosterone pulse all shift with it. This is the single highest-leverage sleep intervention available and it costs nothing.
Your bedroom must be completely dark. Light exposure during sleep — even through closed eyelids — suppresses melatonin release and disrupts the hormonal cascade that follows. I put blackout tape over every indicator light in the room. If you can see your hand in front of your face, it is not dark enough. Room temperature should be 65–68°F — your core body temperature must drop to initiate deep sleep, and a warm room actively prevents that.
Sixty minutes before bed, eliminate everything that elevates cortisol — screens, news, high-stimulation content, intense conversations. Replace it with ten minutes of slow diaphragmatic breathing with extended nasal exhales. Four counts in, hold four, out six to eight. This is not relaxation theater — it is measurable parasympathetic activation that shifts your nervous system state and sets the hormonal environment for sleep. I do this every night without exception.
- Fixed bedtime and wake time — same seven days a week
- Complete blackout — tape over all indicator lights, blackout curtains
- Room temperature 65–68°F
- Screens off 60 minutes before bed
- 10 minutes diaphragmatic breathing — 4 count in / 4 hold / 6–8 out
- Morning sunlight within 30 minutes of waking — 10–20 minutes, no sunglasses
- Target 7–9 hours consistent sleep per night
Food Is Raw Material — Not Just Fuel
Testosterone is synthesized from cholesterol and saturated fat. That is not a dietary opinion — it is endocrinology. The substrate your body uses to manufacture testosterone is the same substrate the mainstream has told you to avoid for thirty years. If you have been eating low-fat because you were told dietary fat was dangerous, you have been starving your endocrine system.
I eat animal-based. Beef, eggs, organs, fish, animal fat. No seed oils — canola, soybean, sunflower, corn oil — which are endocrine-disrupting polyunsaturated fats that oxidize in the body and contribute to the systemic inflammation that compounds into the recovery problems most people mistake for aging. The ancestral nutrition framework is not a diet trend. It is an alignment with the foods humans evolved to eat and the foods that support hormonal health in high-frequency athletes.
Everything in this section connects to the deeper ancestral nutrition work at StopKillingThePlants.com and the free Ancestral Nutrition Guide. The food framework for hormonal health is not separate from the food framework for performance and longevity — they are the same thing.
Beef, eggs, fish, organ meats — nutrient density first, calorie counting never. Beef liver at least once a week. Organ meats are the most nutrient-dense foods available and directly support hormonal production. Saturated fat from animal sources is the raw material for testosterone synthesis. Do not fear it.
Seed oils out completely — canola, soybean, sunflower, vegetable, corn oil, and anything fried in them. These are the single most underappreciated performance variable most BJJ athletes are ignoring. Alcohol is an aromatase activator — it directly increases the conversion of testosterone to estrogen. Processed food contains multiple endocrine-disrupting compounds. Eliminate the inputs that disrupt the hormonal environment before adding anything else.
I use 16:8 intermittent fasting — eating window noon to eight PM. The primary mechanism relevant here is insulin sensitivity and inflammatory marker reduction, not direct testosterone elevation. Lower insulin and reduced inflammation create a more favorable hormonal environment. The research supports this as a reset tool, particularly for men with elevated body fat or metabolic dysregulation. Note: the evidence on TRE and testosterone in already-lean, highly-trained athletes is mixed — the primary benefit is the inflammatory and metabolic picture.
Zinc, magnesium, and Vitamin D are the three most commonly deficient micronutrients in high-frequency athletes, and all three directly impact testosterone synthesis and hormonal health. Zinc deficiency reduces testosterone measurably. Magnesium glycinate supports sleep quality and cortisol regulation. Vitamin D levels correlate directly with testosterone — get your levels tested. These are the only three supplements I use consistently alongside food.
The Aromatase Problem — Why Belly Fat Is the Enemy
Aromatase is an enzyme expressed in adipose tissue — specifically visceral belly fat — that converts testosterone directly into estrogen. The more visceral fat you carry, the more aromatase activity you have, and the more testosterone you are converting to estrogen in real time. Obese men have testosterone levels 30–40% lower than normal-weight age-matched controls, and aromatase is the primary mechanism. This is why body composition is a hormonal issue, not an aesthetic one. Alcohol also activates aromatase. Several compounds in processed food activate it. Clean up the diet and the body composition follows — and the hormonal environment improves with it.
- Animal-based eating — beef, eggs, organs, fish, animal fats as primary foods
- Seed oils eliminated completely — check every label and restaurant meal
- Beef liver minimum once per week — most nutrient-dense food available
- Fermented foods daily — kimchi, sauerkraut, raw dairy if tolerated
- Eating window 12:00–20:00 (16:8) — adjust around training as needed
- Zinc 25–45mg daily with food · Magnesium glycinate 300–400mg before bed
- Vitamin D3 + K2 — dose per bloodwork (get tested; deficiency is extremely common)
- Alcohol eliminated or kept to absolute minimum
The Hormonal Math Changes After 40
Most of what you have been told about training for performance is built on research conducted on men in their 20s and 30s. The hormonal math changes after 40, and a training approach that worked at 30 can actively suppress testosterone at 47. The principle I operate from is this: maximum hormonal signal from the minimum effective training dose. Not less training — smarter training.
Squats, deadlifts, overhead press, rows — multi-joint, free-weight movements that recruit the most muscle mass. These produce the strongest acute testosterone and growth hormone response available through training. The research is consistent: heavy compound free-weight movements produce significantly greater hormonal responses than machine alternatives or isolation work. Two to three sessions per week, three to five sets, six to ten reps, working at 70–85% of one-rep max. This is the non-negotiable foundation of the training protocol.
Prolonged endurance exercise — long slow runs, long bike rides, anything sustained above 60% intensity for more than 45–60 minutes — keeps cortisol elevated for up to 48 hours after you finish. That cortisol suppresses testosterone synthesis and extends recovery time. For a midlife grappler already training BJJ four to six times per week, adding long slow cardio is a cortisol tax you cannot afford. Replace it with HIIT: 30 seconds maximum effort, 90 seconds easy recovery, 15–20 minutes total. The hormonal math of intensity-to-duration ratio is entirely different — you get the cardiovascular adaptation without the cortisol penalty.
Recovery is not what happens between sessions by accident. Recovery is training. I schedule it the same way I schedule mat time: cold immersion post-training for inflammation reduction and nervous system recovery, morning sunlight for circadian anchoring, grounding for inflammatory marker reduction, sauna two to three times per week. Overtraining syndrome — what most people experience as feeling perpetually beat up — is simply a chronically unpaid cortisol debt. The solution is not less BJJ. It is deliberately managing the stress load through scheduled recovery tools.
- Heavy compound lifts 2–3x per week — squat / deadlift / press / row variations
- 3–5 sets × 6–10 reps at 70–85% one-rep max
- HIIT conditioning: 30 sec on / 90 sec off / 15–20 min — 1–2x per week
- No prolonged steady-state cardio above 45 minutes
- Cold immersion post-training — 2–3 minutes cold plunge or cold shower
- Morning sunlight 10–20 min within 30 min of waking — daily
- Grounding 20 min barefoot outdoors — daily where possible
- Sauna 2–3x per week — 15–20 minutes at 170–190°F
- Scheduled deload week every 6–8 weeks
When the Reset Isn't Enough
The three pillars above address the lifestyle drivers of hormonal decline. For most men, implementing them consistently produces measurable improvements in testosterone, recovery, body composition, and energy within 4–8 weeks. But lifestyle intervention has limits — and knowing when you have hit those limits requires data.
If you have implemented sleep, nutrition, and training correctly for 60–90 days and still feel hormonal symptoms — persistent fatigue, low libido, poor recovery, brain fog, mood instability — get a full hormonal blood panel. Request morning bloodwork when testosterone levels are naturally at their peak. The panel should include:
- Total Testosterone
- Free Testosterone
- SHBG (Sex Hormone Binding Globulin)
- Estradiol (E2)
- LH and FSH (Luteinizing and Follicle-Stimulating Hormones)
- Cortisol (morning fasted)
- Vitamin D (25-OH)
- Complete Metabolic Panel including fasting glucose and insulin
- Thyroid panel (TSH, Free T3, Free T4)
Fix the lifestyle first. Get the data. Make informed decisions in that order. A physician who sees suboptimal testosterone and immediately prescribes TRT without investigating the lifestyle drivers — and without running a complete panel — is not serving your long-term hormonal health. You have the right to ask for the full picture before making pharmaceutical decisions.
Three Pillars Are the Foundation. There Is More.
Sleep, nutrition, and training are the non-negotiables. They are where the reset starts and where the compounding begins. But the full Hard to Kill in Midlife performance system goes significantly further than three pillars. The daily and weekly protocols I actually run — cold exposure timing, breathwork integration for hormonal priming, HRV-guided load management, the complete supplement stack with dosing, and the morning architecture that sets the hormonal and neurological environment for everything that follows — all of that is coming.
The solo deep dive that goes with this video. Additional peer-reviewed studies, the daily and weekly protocols I actually run, cold exposure integration, breathwork timing for hormonal health, HRV-guided training load management, and the full supplement stack with specific dosing. Subscribe so you don't miss it — it drops August 25.
The morning protocol that sets the hormonal and neurological environment for the entire day. Circadian anchoring, cortisol curve management, testosterone pulse timing, sunlight sequencing, cold activation, and breathwork integration — all in the first 90 minutes after waking. Coming as both a long-form video and a dedicated podcast episode.
The capstone piece — the complete system that this hormone reset and the Morning Routine both feed into. Full hormone protocol, recovery architecture, ancestral nutrition framework, breathwork and CO₂ tolerance, load management, and the philosophy of health sovereignty for the midlife combat athlete. Long-form video and podcast episode both in development. This is the definitive resource.
[1] Sleep + Testosterone: Leproult R, Van Cauter E. Effect of 1 Week of Sleep Restriction on Testosterone Levels in Young Healthy Men. JAMA. 2011;305(21):2173–2174. doi:10.1001/jama.2011.710 · PMC4445839
[2] Cortisol / Testosterone Suppression — Sleep: Cumming DC et al. Acute suppression of circulating testosterone levels by cortisol in men. J Clin Endocrinol Metab. 1983;57(3):671–673. PMID:6348068
[3] Testosterone Circadian Release During Sleep: Luboshitzky R et al. Disrupted testosterone circadian rhythm. J Clin Endocrinol Metab. 2001. PMID:11579755
[4] Low-Fat Diet + Testosterone: Hamalainen E et al. Diet and serum sex hormones in healthy men. J Steroid Biochem. 1984;20(1):459–464. doi:10.1016/0022-4731(84)90254-1 · PMID:6538617
[5] Aromatase + Adipose Tissue: Jiang C et al. Altered Expression of Aromatase and Estrogen Receptors in Adipose Tissue From Men With Obesity or Type 2 Diabetes. J Clin Endocrinol Metab. 2025;110(10):e3410. doi:10.1210/clinem/dgae677
[6] Visceral Fat + Testosterone (Aromatase Mechanism): Kelly DM, Jones TH. Testosterone and obesity. Obes Rev. 2015;16(7):581–606. doi:10.1111/obr.12282 · PMID:25982085
[7] Time-Restricted Eating + Inflammatory Markers: Moro T et al. Effects of eight weeks of time-restricted feeding (16/8) on basal metabolism, maximal strength, body composition, inflammation, and cardiovascular risk factors in resistance-trained males. J Transl Med. 2016;14:290. doi:10.1186/s12967-016-1044-0
[8] Zinc + Testosterone: Prasad AS et al. Zinc status and serum testosterone levels of healthy adults. Nutrition. 1996;12(5):344–348. doi:10.1016/s0899-9007(96)80058-x · PMID:8875519
[9] Vitamin D + Testosterone: Pilz S et al. Effect of vitamin D supplementation on testosterone levels in men. Horm Metab Res. 2011;43(3):223–225. doi:10.1055/s-0030-1269854 · PMID:21154195
[10] Compound Lifts + Testosterone/GH Response: Shaner AA et al. The acute hormonal response to free weight and machine weight resistance exercise. J Strength Cond Res. 2014;28(4):1032–1040. doi:10.1519/JSC.0000000000000317 · PMID:24276305
[11] Prolonged Endurance Exercise + Cortisol: Skoluda N et al. Cortisol and testosterone dynamics following exhaustive endurance exercise. Eur J Appl Physiol. 2016;116(8):1503–1509. doi:10.1007/s00421-016-3406-y · PMID:27262888
[12] Overtraining — Cortisol/Testosterone Inverse: De Souza MJ et al. Overtraining affects male reproductive status. Fertil Steril. 1994;61(2):251–256.
[13] HIIT + Hormonal Profile vs Steady-State: Hackney AC. Exercise as a stressor to the human neuroendocrine system. Medicina. 2006;42(10):788–796. · Chtourou H, Souissi N. The effect of training at a specific time of day: A review. J Strength Cond Res. 2012;26(7):1984–2005. PMID:22692125
Disclaimer: The information in this post and the accompanying video is for educational purposes only and reflects my personal experience and interpretation of publicly available peer-reviewed research. I am not a doctor, licensed physician, registered dietitian, or certified medical professional of any kind. Nothing here constitutes medical advice, diagnosis, or treatment. The protocols discussed are tools I use personally — they are not prescriptions and may not be appropriate for every individual. Before beginning any new training protocol, nutritional approach, or supplementation regimen — particularly if you have an existing medical condition or hormonal concerns — consult a qualified healthcare provider. Take ownership of your health. Do your own research. Work with professionals who support your goals.
Fuel That Earns Its Place in the Stack
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Stay Dangerous. Stay on the Mats. Hard to Kill in Midlife.
