There are moments when your mind feels like it’s buffering. Your body’s upright, eyes on the screen, but your thoughts suspended in static. No amount of caffeine clears the haze. This isn’t just fatigue. It’s a quiet dissonance in your internal landscape. A system out of sync, depleted of the core elements that once kept it sharp. Cognition isn’t just cerebral. It’s mineral. It’s mitochondrial. It’s the subtle conversation between light, fat and the quiet intelligence of your gut.

Here are 5 ancestral (and often ignored) steps to sharpen cognition by nourishing the systems that hold it.

1. Eat to fuel your neurotransmitters

We’ve been sold the idea that the brain runs on glucose alone. Yet, the human brain is made of nearly 60% fat. And not just any fat: it’s built from cholesterol, phospholipids, and saturated fat, ancestral materials that modern diets have all but exiled. These fats form the scaffolding of your thoughts. They create the membrane walls of neurons, protect the myelin sheath like beeswax around a wick, and allow for quick, efficient communication between brain cells.

More striking still? Neurotransmitters, those invisible messengers behind mood, memory, motivation, depend on a constellation of specific nutrients: B12, choline, zinc, and fat-soluble vitamins (A, D, E, K2). Without them, we don’t feel focused. Or calm. Or human. These don’t come from oat milk lattes or cereal bars. They come from the foods your great-grandmother considered staples.

• Choline fuels acetylcholine, the spark behind memory, focus, and muscle activation.
• B12 + heme iron support oxygen delivery and protect the fatty insulation around nerves.
• Saturated fat stabilises neural membranes and nourishes the folds of the brain itself.

Bone marrow, once prized by every traditional culture, is one of the most powerful sources of these fats. Its silky, golden richness provides the raw material for neural regeneration, while also delivering fat-soluble vitamins that modern food has stripped away. Alongside marrow, grass-fed butter, raw cream, and suet carry the saturated fats that stabilise brain tissue and keep electrical signals sharp and clean. Rotate in grass fed organs during the week to keep B12, zinc, selenium, and CoQ10 levels optimal for neural function.

2. Morning Light > Morning Coffee

Before the brain thinks, it orients. And nothing orients it more powerfully than the sun.

As morning sunlight hits your retina, it sends signals deep into the hypothalamus, resetting your circadian rhythm and initiating a hormonal cascade. Cortisol rises naturally, not in stress, but in readiness. Serotonin production begins. Melatonin fades. Your brain is told: it’s safe to wake up now.

Without this signal, the body doesn’t know what time it is. Cortisol spikes too late, or not at all. Focus drifts. Sleep becomes fragmented. And no amount of caffeine can override a mistimed circadian rhythm.

Morning light carries a unique blend of blue and infrared wavelengths that no screen or lamp can replicate. It entrains the brain to the rhythms of the earth, syncing the invisible clocks inside your cells.

Skip your phone. Step outside within 30 minutes of waking, yes, even if it's cloudy. Let your bare eyes meet the morning. No sunglasses, no glass between you and the sky. Ten minutes is enough to reset the system. If possible, expose your skin too, your body absorbs light not just through the eyes, but through the skin, influencing everything from metabolism to mood. Consider making this a ritual: warm bone broth or raw milk in hand, bare feet on the earth, breath slowing with the light.

3. Rebuild the gut to clear the mind

The mind may sit in the skull, but much of its chemistry is brewed in the gut.

Over 90% of your serotonin, the neurotransmitter of calm, clarity, and contentment, is made not in the brain, but in the lining of your digestive tract. The gut is also where inflammation begins, or ends. And inflammation is the silent saboteur of cognition.

When the gut is compromised, so is mental clarity. Bloating, irregular digestion, food sensitivities, these aren’t just digestive issues. They’re signs that the gut-brain axis is frayed. That the microbial ecosystem responsible for regulating mood, focus, and hormonal balance is struggling to survive.

Traditional cultures knew this long before clinical trials did. They didn’t count bacteria. They fermented. They simmered bones. They ate bitter herbs and cleansing roots with each meal.

Start building your microbial foundation with intention. Add a tablespoon of sauerkraut or a small glass of raw kefir with your meals to introduce diverse, ancestral bacteria. Make a batch of broth on Sunday, simmering bones with bay leaves, garlic, and sea salt, and sip it warm between work blocks to support gut lining and blood sugar.

4. Ditch the hidden brain hijackers

There are silent saboteurs woven into modern life that fray your nervous system slowly, invisibly, day after day. They don’t announce themselves like caffeine crashes or sugar highs. Instead, they dull the mind over time, interrupting neurotransmitter function, hijacking your dopamine circuitry, and robbing you of deep, restorative sleep.

We’re talking about seed oils oxidising quietly in your cells. Synthetic “natural” flavours overstimulating taste receptors while offering nothing real to feed on Plastic packaging leaching xenoestrogens. Even background noise, constant scrolling, and artificial scents, these are the invisible stressors that jam your neural pathways and fog the mind.

Your brain is electrical. It relies on clean signals, fat-based insulation, precise mineral flow, undisturbed hormonal cycles. When those signals are drowned out by noise, chemicals, fake light, rancid oils, the system begins to stutter. Sleep becomes shallow. Focus fractures. Brain fog settles in, not from lack of productivity, but from exposure.

Swap industrial oils, canola, rapeseed, sunflower: for ghee, tallow, or cold-pressed olive oil. These stable, ancestral fats nourish your brain’s cellular membranes and support healthy inflammation responses. Ditch plastic-wrapped, ultra-processed snacks for whole food alternatives: boiled eggs, cheese, seasonal fruit with sea salt, or simply leftovers fried in butter. And begin to detox from artificial inputs beyond food. Ditch synthetic perfumes, heavily fragranced laundry products, and plug-in air fresheners that overload your olfactory system. Instead, crack a window. Burn beeswax or tallow candles. Reintroduce your senses to natural quiet, wind, birdsong, stillness. Even a few minutes of true sensory rest can calm the nervous system.