Sep 30 • Coach’s Corner (Expert Drops)
Sunlight Is the Source Code of Human Health (Must Read)
Walk outside on a bright morning and let the sun hit your skin. You’ll notice something instantly, your body wakes up in a way no coffee or pill can match. There’s a reason for that. For millions of years, sunlight was the master signal that guided human health. Every hormone, every clock in your body, every rhythm of wake and sleep was set by it.
Modern man lives in boxes. We wake up in a dark room, step into a car, sit in an office under artificial light, stare at blue screens all day, then go home and wind down with a glowing TV. We might swallow a vitamin D pill or a melatonin capsule and call it “health.”
But this is a tragic downgrade compared to how men lived for 99% of human history. Our ancestors rose with the sun, worked under its full spectrum of light, and rested when it set. Their bodies weren’t confused about when to be awake or when to sleep. Their hormones weren’t blunted. Their moods weren’t flatlined. They didn’t need supplements, because they lived plugged into the original source code of health (code our body follows for thousands of years): the Sun.
Sunlight gives you the whole picture. When the morning light hits your eyes, special receptors send a message straight to your brain: it’s time to be awake. Cortisol rises naturally, metabolism switches on, and testosterone production gets its daily cue. Midday, the UVB rays strike your skin and convert cholesterol into vitamin D, the raw material your body uses to strengthen bones, support immunity, and maintain healthy testosterone levels. At the same time, UVA rays release nitric oxide stored in your skin, opening blood vessels, lowering blood pressure, and improving circulation. Then, as the day ends, the low red and infrared light of sunset calms your nervous system, penetrates deep into your tissues, and sets you up for deep, restorative sleep.
This is the orchestra of health. A supplement can only ever play one instrument.
Men with regular sun exposure consistently show stronger testosterone levels, not just because of vitamin D, but because their circadian rhythm, the daily hormonal pulse — is aligned with the light–dark cycle our bodies were built on. When that rhythm drifts, testosterone release becomes weaker and flatter. That’s why a man who trains outside, lifts in the sun, and respects his body clock often feels more powerful than the guy relying on pills and pre-workouts.
The Sun and Testosterone
Men with higher sun exposure consistently show higher testosterone levels. Why? Two reasons:
- Vitamin D is a hormone precursor. Without it, testosterone synthesis drops. Studies show vitamin D deficiency is linked with lower T across the board.
- Circadian rhythm controls hormone pulses. Testosterone peaks in the morning when your body expects light. If you wake in darkness, sit indoors, and miss the sun, your rhythm drifts. Hormone release becomes flat, inconsistent, weaker.
This is why morning sun + lifting weights is one of the most powerful natural testosterone “stacks” a man can use.
Our ancestors
Understood this without knowing the science. They woke with the sunrise, worked, hunted, and walked under the sky, and ended their day when the sun fell. Their food grew in the sun, their hormones rose and fell with light, and their sleep was anchored in darkness.
Compare that to modern man:
He wakes in darkness, commutes in a car, sits under artificial bulbs, stares at blue screens at midnight, and eats food made under factory lights. Then he wonders why he’s tired, anxious, low in testosterone, and dependent on supplements.
The fix isn’t complicated, it’s about reestablishing thousands of years old link.
How to Reclaim the Sun
- Morning reset: 10–20 minutes outside within an hour of waking. No sunglasses. Let your eyes see real daylight. This sets the clock that governs energy, sleep, and testosterone.
- Midday charge: Expose skin when the sun is highest. Even 10–15 minutes builds vitamin D and boosts hormone health more than weeks of pills.
- Evening wind-down: Watch the sunset or at least step outside. That low red light tells your brain it’s time to lower cortisol and prepare melatonin release.
- Night discipline: Kill artificial blue light after dark. Use lamps low to the ground, warmer bulbs, or candles.
Hack for winter or if you live too far north for UVB in winter, use a bright light box (SAD lamp) in the morning, it won’t make vitamin D, but it will keep your circadian rhythm aligned.
👉 Question for the community: Do you notice changes in mood, sleep, or even your strength when you spend more time outside versus weeks stuck mostly indoors?
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Sunlight Is the Source Code of Human Health (Must Read)
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