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Headstrong In The Wild
Team Headstrong
Cognitive Energy. Every Day.

Mental fatigue has a cause. And a science backed fix.

That heavy, unmotivated, can't-quite-focus feeling isn't just "being tired." It's a physiological state and it's driven by things you can actually fix.

See The Causes Get Headstrong
$39.99/mo  ·  NSF Certified  ·  30-day guarantee
500+
Pro Athletes
4.9★
340+ Reviews
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NFL  ·  NHL  ·  PWHL  ·  MLB
Understand mental fatigue

What mental fatigue is. And why rest alone doesn't fix it.

Mental fatigue is a real, measurable shift in your brain's state brought on by a prolonged period of demanding activity — physical, cognitive, or both — or by insufficient sleep. It's not a character flaw and it's not "just in your head." It's your brain running short on the resources it needs to sustain focus.

✕An increased feeling of tiredness that doesn't lift with a coffee or a short break
✕Slower reaction time and reduced accuracy on tasks that used to feel automatic
✕Lower motivation, alertness and resistance to further effort — even for things you normally want to do
What's actually driving it
  • Prolonged cognitive loadHours of sustained focus — training, back-to-back meetings, deep work — depletes the brain energy and neurotransmitter reserves focus runs on.
  • Sleep deprivationEven one night of poor sleep measurably increases next-day mental fatigue and slows reaction time.
  • Chronic stressOngoing stress keeps cortisol elevated, which research links to impaired recovery and sustained attention.
  • Physical exertion stacked on cognitive demandTraining hard and thinking hard in the same day compounds the resource drain instead of just adding it up.
How to overcome it

Science-backed ways
to recover from mental fatigue.

Recovery isn't just "rest more." These are the levers that actually move the underlying causes — sleep, stress, cognitive load, and nutrition.

i
Prioritize sleep quality, not just quantity

Sleep deprivation is one of the most direct causes of next-day mental fatigue. Consistent sleep and wake times matter as much as total hours.

ii
Manage chronic stress deliberately

Sustained stress keeps cortisol elevated, which research ties to impaired recovery and attention. Structured decompression — not just "pushing through" — is part of the fix.

iii
Take real breaks from cognitive load

Short, genuine breaks away from demanding tasks let attentional resources partially recover — scrolling your phone during a "break" generally doesn't count.

iv
Support your brain's energy and stress chemistry nutritionally

Sleep and stress management address the causes you can control day to day. But your brain also needs the raw materials — energy substrates, cortisol-modulating compounds, and neurotransmitter precursors — to actually recover and stay resilient under repeated demand.

Where Headstrong Fits

Could Headstrong help support mental energy and cognitive performance? Here's the ingredient science behind it.

See The Ingredient Science ↓
Real people. Real fatigue. Real recovery.

What people just like you
are saying.

From the third period to hour eight of back-to-back meetings — real feedback from people who used Headstrong to recover their focus and energy.

★★★★★

"I used to hit a wall by the third period — legs fine, head done. I didn't realize how much that was costing me on reads I'd normally make without thinking. A few weeks in and that wall moved a lot further back."

MIKE R.Men's league hockey · Verified buyer
★★★★★

"I run a 12-person team and used to be completely fried by 3pm most days — pushing through meetings I couldn't really focus in. That crash is genuinely shorter and shallower now, no jitters, no crash from caffeine either."

Priya D. — Product LeadBay Area tech · Verified buyer
★★★★★

"Training hard and working a demanding job at the same time was wrecking my recovery, not just my legs — my head never felt fully back online. The NSF cert is what got me to try it. The actual mental recovery is what kept me on it."

Samantha P. — CrossFitCompetitive CrossFit athlete · Verified buyer
The dose comparison

Full clinical doses. Sub-clinical doses don't move fatigue.

Most brands include a fraction of the studied dose so they can list an ingredient on the label. That's not enough to meaningfully support recovery from mental fatigue. Every ingredient in Headstrong is dosed at or above the level used in the research it's based on.

Headstrong — % of clinical dose
Typical competitor — % of clinical dose
Creatine
Monohydrate
~64%
Lion's Mane
Mushroom
Not included
Ashwagandha
KSM-66®
~45%
NAC
Not included
L-Tyrosine
~30%

Competitor figures reflect commonly available formulas at typical published doses as a category average, not a named product. Full ingredient sourcing on request.

"
Team Headstrong  ·  NFL  ·  Philadelphia Eagles

Season-long fatigue used to build all year. This is the first thing that actually kept me sharp through December.

Carson Steele
NFL Running Back  ·  Team Headstrong Athlete
Why Headstrong exists

Built by a scientist who studies fatigue.
Demanded by an athlete who lived it.

Headstrong was not invented in a boardroom. It was built because one professional athlete lived mental fatigue from the inside — and a PhD sports scientist had spent two decades studying exactly why it happens and what actually helps.

Co-Founder  ·  Chief Science Officer
Dr. Darren Burke
PhD, Sport & Exercise Science

Darren spent two decades in elite sports nutrition research, studying how the brain holds up — or doesn't — under sustained physical and cognitive load, and testing products for the biggest brands in the world. He kept seeing the same gap: everyone was formulating recovery for the body under fatigue and nobody was formulating recovery for the brain under fatigue. He previously founded and scaled a sports nutrition company from zero to category leader.

"Fatigue isn't a mood. It's a resource problem. So we built a resource solution."
Co-Founder  ·  Active Professional Hockey Player
Evan Nause
Professional Hockey Player  ·  Co-Founder

Evan did not build Headstrong because it was a good business idea. As an active professional hockey player, he lived the fatigue firsthand — mental exhaustion that didn't clear overnight, focus that wasn't there late in a game, energy that outlasted his legs but not his head. Nothing on the market addressed it, so he built the product himself.

"I knew exactly what I was feeling. So we built the product that didn't exist."
The only recovery-first formula

Every quick fix stops at the spike. We stop fatigue at the source.

Sports nutrition has spent 40 years optimizing the body's recovery. Protein for muscle. Electrolytes for hydration. All of it matters. None of it addresses the organ that decides whether you're still sharp in the fourth quarter or the fourth meeting of the day.

What you needHeadstrongCoffee, Energy Drinks & Nootropic Stacks
NSF Certified for Sport✓ Yes — every batch✕ Not certified
Addresses the cause of fatigue✓ Cortisol, energy, dopamine✕ Masks it temporarily
Clinically-studied doses✓ Every ingredient△ Often underdosed
Neuroprotective ingredients✓ Lion's Mane + NAC✕ Typically absent
No stimulant crash✓ Zero caffeine✕ Crash is the mechanism
No proprietary blends✓ Full label transparency△ Often hidden
Trusted by 500+ pro athletes✓ NFL, NHL, PWHL, MLB✕ Not at this level

△ = partial or inconsistent  ·  ✕ = not standard across the category  ·  Based on publicly available product information.

The ingredient science

Five ingredients.
Each targets a different driver of fatigue.

Mental fatigue isn't one thing — it's the result of several systems running short at once. No proprietary blends, no underdosed fillers. Every ingredient at its clinically-studied dose, independently verified by NSF Certified for Sport.

i
Creatine Monohydrate

Your brain runs on ATP just like your muscles do. Under sustained physical or cognitive demand, the brain's rapid-energy reserves run low — a direct contributor to the drained, low-energy feeling of mental fatigue. A full 5g clinical dose keeps that energy system supplied.

5g Dose
ii
Lion's Mane Mushroom

Studied for its support of Nerve Growth Factor (NGF), which is tied to neuron health and everyday cognitive resilience — helping sustain performance as demand accumulates over the day.

Brain Hero
iii
Ashwagandha KSM-66®

Chronic stress keeps cortisol elevated, and elevated cortisol is linked to impaired recovery and reduced motivation — core features of mental fatigue. KSM-66 is clinically studied to help lower cortisol, supporting stress resilience at the hormonal level.

KSM-66®
iv
NAC — N-Acetyl Cysteine

Precursor to glutathione, the body's primary antioxidant. Sustained physical or cognitive exertion generates oxidative stress in neural tissue, which is associated with fatigue and slower recovery. NAC helps support the body's defense against that load.

NAC
v
L-Tyrosine

Precursor to dopamine and norepinephrine — the neurotransmitters most closely tied to motivation and alertness, and the ones that deplete first under sustained demand. L-Tyrosine replenishes the raw material for both, supporting focus instead of letting it collapse under load.

Amino Acid
NSF Certified for SportNo banned substancesVeganMade in the USA
NSF
Certified for Sport
Third-Party Independently Verified
Third-party verified

The standard that actually means something.

Most professional leagues and NCAA programs require it. If you compete — and especially if you get tested — this is the standard that protects you. And if you're not an athlete, it's still the fastest way to know a brand's dosing claims are real, not marketing.

✓
No banned substances from the WADA prohibited listTested against the full prohibited substance database
✓
No heavy metals above safe thresholdsLead, mercury, arsenic, cadmium — independently tested
✓
Label accuracy — stated ingredients at stated dosesDosages verified, not just claimed
✓
Required by most pro leagues and NCAA programsThe certification athletes who get tested depend on
Carson Steele
Philadelphia Eagles
NFL
Brandon Johnson
Pittsburgh Steelers
NFL
Mackie Samoskevich
Florida Panthers
NHL
Louis Crevier
Chicago Blackhawks
NHL
Sophie Shirley
Boston Fleet
PWHL
Adisyn Coffey
Chicago White Sox
MLB
The value case

Five products.
One formula.
$39.99.

Creatine Monohydrate$18–25/mo
Lion's Mane Extract$22–30/mo
Ashwagandha KSM-66®$18–24/mo
NAC$12–18/mo
L-Tyrosine$10–16/mo
Bought separately  ·  No NSF$80–113
Headstrong  ·  NSF Certified$39.99
per month with subscription  ·  all 5 ingredients at clinical doses
Subscribe & Save 20%

Recover for real.
$39.99 a month.

Batch #B-47 — Limited Availability 2,102 units remaining
NSF Certified batches are independently tested before release. Next batch est. 6–8 weeks.
Headstrong
  • Formulated to target the actual causes of mental fatigue — not just mask it
  • NSF Certified for Sport — independently verified doses
  • Zero caffeine, zero crash — works whether you're on the field or at your desk
  • Skip, pause or cancel anytime — no lock-in
  • 30-day money-back guarantee
Get Headstrong — $39.99/mo or try one tub for $49.99 — choose on the next step
30
Day
Guarantee

If your energy and focus haven't improved after 30 days, full refund on your first order. No calls. No conditions.

Questions answered

What people ask about mental fatigue.

Common symptoms include persistent tiredness that doesn't lift with rest, slower reaction time, trouble concentrating, reduced motivation and alertness, and a general resistance to further mental or physical effort.

Consistent sleep, deliberate stress management, real breaks away from cognitive load, and supporting your brain's energy and stress chemistry nutritionally are the four levers that actually address the underlying causes rather than just masking the feeling.

Mental fatigue isn't a diagnosis on its own, so there's no single prescribed treatment — but the research-backed approach is addressing the drivers directly: sleep, stress, cognitive load management, and targeted nutritional support. If fatigue is severe, persistent or unexplained, talk to a healthcare provider to rule out an underlying condition.

Rest helps, but it doesn't replenish everything mental fatigue draws down — cortisol can stay elevated, brain energy reserves and neurotransmitter levels can stay depleted, and oxidative stress can linger. That's why some people still feel foggy and low-energy after a full night's sleep.

No stimulants. No caffeine. Nothing that spikes and crashes. You can take it any time of day without disrupting sleep.

Headstrong is NSF Certified for Sport, which means every batch is independently tested against the full WADA prohibited substance list. No banned substances, no surprises.

Most people notice improvements in focus and afternoon energy within two to four weeks of daily use, as the ingredients build up and address the underlying causes rather than delivering a one-time spike.

Your first tub ships immediately, billed $39.99 monthly. Skip, pause or cancel any time before the next billing date — no fees, no phone call.

The mental fatigue formula

Fatigue ends today.
Recovery starts now.

NSF Certified. PhD developed. Trusted by 500+ professional athletes. One scoop a day, no caffeine, no crash.

Get Headstrong — $39.99/mo $49.99 one-time also available  ·  30-day guarantee  ·  cancel anytime
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