Joshua Hackett, M.D. | Sun🌞 & Sardines🐟

I help the 35+, high-achieving, busy and stressed fix their hormones, melt body fat and reclaim energy using a simple circadian protocol.👇🏼

[Joshua Hackett, M.D. | Sun🌞 & Sardines🐟 @decentralizedMD]

🔥October is ALREADY sold out. The November waitlist for my Wayfinder Protocol is open. I offer a 15% for being waitlisted. DM me “PROTOCOL”

Metabolism isn’t about calories. It’s about charge.⁠

Mitochondria aren’t calorie counters but quantum engines. Their job is to create charge separation across the inner mitochondrial membrane. ⁠
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Every calorie you eat is broken down into electrons, protons, and photons that fuel that electrical process, driving ATP production.⁠
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And here’s the catch: the efficiency of that process depends on your environment, not your macros:⁠
✅Morning light and a properly timed protein-rich first meal reset leptin and optimize electron flow.⁠
✅Cold exposure increases mitochondrial density and uncouples proteins for cleaner energy.⁠
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🚫Blue light at night collapses redox potential, forcing mitochondria into survival mode — fat storage, inflammation, and fatigue.⁠
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Your body isn’t broken. Your environment is. Fix the physics, the light, timing, and charge, and the chemistry falls back into place.⁠

[Joshua Hackett, M.D. | Sun🌞 & Sardines🐟 @decentralizedMD]

Everything that disrupts the signal…is just noise.⁠
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Blue light at night? Noise.
Skipping sunrise? Noise.⁠
Late meals, late screens, late workouts? Noise.⁠
Supplements trying to replace rhythm? More noise.⁠
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The body runs on signal.⁠
From the sun. From the earth. From real food, at the right time.⁠
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Strip the noise. Reclaim the signal. That’s how you heal.⁠

[Joshua Hackett, M.D. | Sun🌞 & Sardines🐟 @decentralizedMD]

Blue light after sunset doesn’t just strain your eyes but rewrites your entire hormonal code.⁠
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Here’s why:⁠
➡️Melanopsin receptors in your retina and skin are non-visual photoreceptors. They don’t see light; they sense it.⁠
➡️When they detect blue light after dark, they send a “daytime” signal to the suprachiasmatic nucleus — your master circadian clock.⁠
➡️That false daytime signal suppresses melatonin, flattens your growth hormone pulse, and fragments your deep sleep architecture.⁠
➡️By morning, your cortisol is mistimed, your brain fogged, and your appetite dysregulated.⁠
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The solution isn’t complicated, it’s consistent: ⁠
✅Morning light⁠
✅Sunset dimming⁠
✅Hard cutoff for screens. ⁠
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Darkness is not optional; it’s the trigger your biology needs to repair, recover, and rebuild.⁠

[Joshua Hackett, M.D. | Sun🌞 & Sardines🐟 @decentralizedMD]

Testosterone isn’t built in a syringe. It’s built in the light.⁠
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Your brain’s master clock (the suprachiasmatic nucleus) tells your pituitary when to pulse LH, which tells your testes when to release testosterone. ⁠
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That timing signal comes from sunrise light hitting your eyes and skin.⁠
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Melatonin sets the stage at night. If artificial blue light keeps you awake past sunset, melatonin never rises. Without melatonin, you don’t get deep sleep. Without deep sleep, you don’t get the growth hormone surge that unlocks testosterone.⁠
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And food matters but not the way you were taught. ⁠
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Leptin must check in with your hypothalamus at sunrise via a protein-rich meal. That signal tells your brain, “We’re fed, safe, and ready to build.”⁠
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✅ See sunrise, bare eyes to morning light → resets circadian clock, triggers LH + dopamine.⁠
✅ Front-load protein + fat in the AM → primes leptin and testosterone release.⁠
🚫 Skip the late-night screens → blue light erases melatonin, steals your recovery.⁠
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Your suspicion was right: low T isn’t just “aging.”⁠
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It’s physics ignored. Light, food timing, and darkness decide if your hormones rise or collapse.⁠
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Reclaim your signal. Reclaim your power.⁠

[Joshua Hackett, M.D. | Sun🌞 & Sardines🐟 @decentralizedMD]

Health isn’t six packs. It’s time.
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Time to think clearly.
Time to rise with the sun.
Time to move without pain.
Time to age without breaking.
Time with your kids, in nature, with vitality.⁠
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Six packs are a byproduct. But if you’re chasing abs while ignoring light, sleep, and rhythm, you’re trading time for a trap.⁠
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Build a metabolism that gives time back.That’s the flex no gym sells.⁠

[Joshua Hackett, M.D. | Sun🌞 & Sardines🐟 @decentralizedMD]

Every story I share here is proof that the Wayfinder Protocol isn’t another diet or gym routine.⁠
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This is a 12-week immersion that strips away the noise of centralized health advice and reconnects you to the signals your body was designed to follow: ⁠
✅Light.⁠
✅Food timing.⁠
✅Circadian rhythm.⁠
✅Cold/heat cycles.⁠
✅Grounding.⁠
✅Natural movement.⁠
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Most of the people who come into Wayfinder are 35+, high-achieving, successful on paper yet burned out, stuck in stubborn weight, tanked hormones, restless sleep, and fading drive. They feel like life is racing past them and they don't have the energy to keep up. ⁠
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They’ve tried diets, gyms, supplements, even hormone replacements… and it still didn’t fix the problem.⁠
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Why? Because none of that addresses the root switch: ⁠
➡️Circadian biology.⁠
➡️Leptin signaling.⁠
➡️Mitochondrial redox. ⁠
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When you align your biology with the sun, seasons, and the ground beneath your feet, the system re-wires itself. ⁠
🔥Energy rises. ⁠
🔥Hormones normalize. ⁠
🔥You sleep like a baby.⁠
🔥The fog lifts.⁠
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That’s why these testimonials matter, they’re not about quick hacks. They’re are reclamations of sovereignty and health freedom over real bodies and lives.⁠

[Joshua Hackett, M.D. | Sun🌞 & Sardines🐟 @decentralizedMD]

Darkness is not the absence of light, it is its own active signal.⁠
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When your environment goes dark after sunset, about 4 hours later, your pineal gland releases melatonin. ⁠
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Melatonin is far more than just a sleep hormone. It is a master hormone: ✅Melatonin drives repair mechanisms.⁠
✅Melatonin drives growth mechanism.⁠
✅Melatonin drives anti-cancer mechanisms.⁠
✅Melatonin drives mitochondrial clean-up at the cellular level.⁠
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Flood your environment with blue and bright light after dark and melanopsin stays activated, keeping your biology in “day mode.” The result:⁠
🚫Flattened melatonin.⁠
🚫Fragmented sleep.⁠
🚫Nervous system stuck in a sympathetic (fight-or-flight) state. ⁠
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Protect the dark:⁠
🔥Use red or amber light indoors after sunset. ⁠
🔥Screen filters or use blue-blockers ⁠
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These aren’t biohacks; they’re a way to return to ancient biology.⁠

[Joshua Hackett, M.D. | Sun🌞 & Sardines🐟 @decentralizedMD]

WARNING: You’re being sold a lie about metabolism. Follow me and break free.

Your hormones don’t listen to calories. They listen to light. Leptin included.⁠
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Leptin is the master switch. It tells your brain how much energy you have stored. ⁠
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When leptin is heard, your hypothalamus can regulate appetite, metabolism, thyroid, and testosterone. ⁠
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When leptin is ignored, everything downstream collapses: fat piles on, hunger never shuts off, and your hormones flatline.⁠
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Why does leptin go deaf? Because the signal is scrambled by modern life: late-night eating, blue-lit evenings, and living as if it’s eternal summer. You already suspected it wasn’t about willpower and you were right.⁠
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✅ See sunrise and eat protein within 30 minutes → gives leptin its daily signal.⁠
✅ Eat your last meal before sunset → keeps leptin aligned with darkness.⁠
🚫 No nighttime screens → blue light silences melatonin, and melatonin is what allows leptin to reset your system overnight.⁠
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The gap isn’t discipline. It’s signal mismatch. Fix the timing of light and food, and you flip leptin back on.⁠
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Leptin is the general. When it speaks, your hormones listen.⁠

[Joshua Hackett, M.D. | Sun🌞 & Sardines🐟 @decentralizedMD]

Hunger isn’t a discipline issue. It’s a signal issue. ⁠
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If your brain thinks it’s winter at noon because of indoor light.⁠
If your mitochondria can’t make energy from food or fat⁠
If your leptin signal is jammed up from blue light and late nights⁠
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Then of course you’re hungry.⁠
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You’re not weak just misaligned. Fix the signal, and hunger recalibrates.⁠
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It’s not about willpower but nature's wiring.⁠
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#decentralizedhealth #mitochondria #leptin #easyweightloss #hungersignal

[Joshua Hackett, M.D. | Sun🌞 & Sardines🐟 @decentralizedMD]

Cloudy sunrise? Still counts.

Even through the clouds, the photons are speaking.

Your circadian clock doesn’t care if it’s golden or gray. It just wants the signal.

Your job is to show up. Rain or shine. Eyes to the sky. Clock in.

[Joshua Hackett, M.D. | Sun🌞 & Sardines🐟 @decentralizedMD]

You’re not failing your body.

Your body is following orders from a broken environment.

Every hormone you care about like testosterone, thyroid, leptin, cortisol is governed by circadian photoreceptors and mitochondrial redox signals.

Blue light at night flattens melatonin, disrupts your master clock,
and leaves your mitochondria bathed in chaotic timing.

No morning sun? You miss the UV-A–driven dopamine and nitric oxide release that calibrates your metabolism, mood, and vascular tone.

You can have the perfect diet and still gain fat. Still feel flat. Still wonder if you’re broken.

What looks like low testosterone, burnout, or anxiety… is often just a circadian mismatch between your environment and your biology.

This is what I teach inside the protocol.

We restore biology’s native code. We fix light first. Then food. Then fire.

[Joshua Hackett, M.D. | Sun🌞 & Sardines🐟 @decentralizedMD]

I need your help.

I’ve set a mission: Help 10 people reclaim their energy, drive, and metabolic edge by labor day.

Not through meal plans. Not through another fitness app. Through light, circadian rhythm, and real-world biology.

But I can’t do this alone.

So if you know someone who’s burned out, stuck in cycles of fatigue, stubborn fat, poor sleep, low libido…Send them my way.


Tell them to DM me “FIRE.”


I’ll get them started immediately—free of charge—with the first steps to rebuild their rhythm.

This is how the revolution spreads. One aligned human at a time.

Let’s go.


—Dr. Hackett

[Joshua Hackett, M.D. | Sun🌞 & Sardines🐟 @decentralizedMD]

Most people don’t have a metabolism problem.
They have a light problem.
You can take creatine, magnesium, and every biohack in the book…
But if your mitochondria still think it’s midnight at noon, you’ve lost before you began.
🧬 Hormones don’t obey ambition.
☀️ They obey the sun.
Wake. Eat. Move. Sleep.
Not by force. By signal.

You don’t need more supplements.
You need a solar schedule.

[Joshua Hackett, M.D. | Sun🌞 & Sardines🐟 @decentralizedMD]

@rosenfeld_ro_ I don’t often share that. Maybe I should make more posts on what I do.

[Joshua Hackett, M.D. | Sun🌞 & Sardines🐟 @decentralizedMD]

Alignment isn’t just spiritual.⁠
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It’s chemical. It’s mitochondrial. It’s hormonal.⁠
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When you wake with the sun, eat at solar noon, and shut it down at night… Your body knows.⁠
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Leptin signals clean. Cortisol peaks sharp. Testosterone builds like clockwork.⁠
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Alignment isn’t woo. It’s biology obeying physics. Hormones don’t follow motivation. They follow timing.⁠
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Get the rhythm right, and the chemistry follows.⁠

[Joshua Hackett, M.D. | Sun🌞 & Sardines🐟 @decentralizedMD]

🔥 Feeling burned out but still pushing hard?

I’m offering a few more FREE 1:1 coaching calls for high performers who feel like their metabolism, energy, or edge has quietly slipped.

If you’re tired of surface-level fixes and want to reset from the core, DM me "FIRE" to claim a spot.

Energy isn’t something you hustle for. It’s something you restore by working with your biology, not against it.

[Joshua Hackett, M.D. | Sun🌞 & Sardines🐟 @decentralizedMD]

@rosenfeld_ro_ I have a quite a lot of that! May want to cross follow me on Instagram.

[Joshua Hackett, M.D. | Sun🌞 & Sardines🐟 @decentralizedMD]

Your symptoms aren’t random. They’re rhythmic.⁠
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Poor sleep isn’t “just stress.” Bloating isn’t “just age.” Weight gain isn’t “just your genes.”⁠
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Mood swings, fatigue, cravings—they’re all signals, not flaws. Signals from an environment your biology no longer recognizes.⁠
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🔦 Light at the wrong time⁠
🍽 Food at the wrong time�⁠
🛌 Rest at the wrong time�⁠
💊 Stimulation at all the wrong times⁠
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Modern life is chronically misaligned. But your body never lost the plot—⁠
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…it’s just reacting to a world that no longer fits its wiring.⁠
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Your symptoms are telling the truth. It’s the environment that’s been lying.⁠

[Joshua Hackett, M.D. | Sun🌞 & Sardines🐟 @decentralizedMD]

@rosenfeld_ro_ Yep absolutely. You can always feel free to check out the 7 day Signal Sprint that I run!

https://t.co/EAZLIZ4cOa

[Joshua Hackett, M.D. | Sun🌞 & Sardines🐟 @decentralizedMD]

Depends on the change one would be referring to. I run a 12 week protocol and the one thing I will guarantee people is better sleep. I won't guarantee anything else, but often people start having a lot more energy, a better mood, much better control over hunger and weight loss in that time as well.