OrigenNat

La salud que perdiste está más cerca de lo que crees.
Sol, movimiento, sueño profundo y comida real.
Vuelve al origen.

[OrigenNat @OrigenNat]

Nos hemos alejado mucho de lo esencial.
Pero no es tan difícil volver.
Sol, ayuno, descanso, movimiento y comida real.
Solo información, para que tú seas quien decida.

[OrigenNat @OrigenNat]

The insulin model also explains the tissue partitioning problem. Two people in identical caloric deficits can have completely different outcomes depending on insulin dynamics. High chronic insulin during a deficit preferentially preserves fat and breaks down lean mass. The calories are the same. The hormonal environment determines what gets burned. That's not a detail. That's the whole mechanism.

[OrigenNat @OrigenNat]

El mecanismo es más directo de lo que parece. Los ácidos grasos poliinsaturados de la dieta se incorporan literalmente a las membranas de las células de la piel en semanas. Con alta carga de omega-6 linoleico, esas membranas son más susceptibles a la peroxidación lipídica inducida por UV. La piel que quema fácilmente no es solo cuestión de fototipo. Es también un reflejo de lo que comiste los últimos tres meses.

[OrigenNat @OrigenNat]

The issue isn't sourdough. It's what's sold as sourdough. Authentic long-fermentation sourdough reduces phytate content by up to 62% and partially pre-digests gluten via Lactobacillus proteases. Most commercial "sourdough" uses vinegar or flavoring with standard yeast and skips fermentation entirely. The label says sourdough. The process never happened.

[OrigenNat @OrigenNat]

The glymphatic system adds another layer to the mechanism. During deep sleep, the brain's interstitial space expands by around 60% and CSF flow clears beta-amyloid and tau. With 4 hours of sleep that process barely occurs. The metabolic damage you describe is real, but in parallel the brain accumulates the waste products we associate with cognitive decline. The visceral fat shows up on the scale. What happens in the brain that same night doesn't appear in any blood panel.

[OrigenNat @OrigenNat]

Mientras duermes es cuando el músculo que entrenaste se construye. La hormona de crecimiento alcanza su pico máximo en las primeras horas de sueño profundo. No en el gimnasio. No en la proteína. En la cama, con la habitación fría y oscura.

[OrigenNat @OrigenNat]

The muscle loss angle is what makes this more significant than it looks. At 52, walking 20-28k steps daily creates enough mechanical load to slow sarcopenia, but the adaptation is largely in slow-twitch fiber endurance. The fast-twitch fibers, which are the ones that decline fastest after 50 and predict fall risk and functional independence, respond mainly to resistance training. Both matter. One without the other leaves a gap that shows up a decade later.

[OrigenNat @OrigenNat]

The conditional part starts with cortisol. After 40, the morning cortisol awakening response weakens while evening cortisol tends to stay elevated. That pattern suppresses testosterone, raises visceral fat deposition, and blunts the anabolic signal from whatever training you do. Sleep and stress regulation aren't lifestyle add-ons at that point. They're the prerequisite for everything else to work.

[OrigenNat @OrigenNat]

The leptin part is the one worth expanding. Leptin resistance develops before insulin resistance becomes visible in bloodwork. The hypothalamus stops reading the satiety signal while fasting leptin levels are actually elevated. The body is screaming full. The brain can't hear it. Hunger in that state isn't a willpower problem. It's a broken receiver.

[OrigenNat @OrigenNat]

The neuron angle is worth adding. Glucose metabolism in the brain produces around 40% more reactive oxygen species per ATP generated than BHB does. That gap matters most in high-demand tissue with limited antioxidant capacity. The hundred-year epilepsy result isn't a curiosity. It's the clearest signal we have that the brain runs measurably better on the fuel it evolved with.

[OrigenNat @OrigenNat]

La temperatura de la habitación afecta el sueño profundo más de lo que parece. El cuerpo necesita bajar su temperatura central 1-2 grados para iniciarlo. Por encima de 19-20°C ese proceso se complica. El calor artificial nocturno es uno de los destructores de sueño más ignorados.

[OrigenNat @OrigenNat]

The yolk is the result, not the goal.
Focus on how the hen lived, not just on the color you see on the plate.
That said, if the yolk is pale, it's usually not a great sign. A rich orange yolk often reflects a diet with more natural pigments, but context always matters more than color alone

[OrigenNat @OrigenNat]

The cephalic phase adds another layer. Before food even reaches the mouth, the sight and smell of it triggers vagus nerve activation, releasing stomach acid and digestive enzymes. Chewing amplifies that signal. The stomach is already primed by the time the first bite arrives. Skip that phase by eating fast and distracted and the whole cascade runs at half capacity.

[OrigenNat @OrigenNat]

Lo que completa el mecanismo: la vía mevalonato que bloquean las estatinas no solo produce colesterol. Es la misma ruta que sintetiza CoQ10, el transportador de electrones sin el que la cadena respiratoria mitocondrial no puede generar ATP. Sin CoQ10 la membrana mitocondrial pierde potencial electroquímico antes de que el colesterol baje lo suficiente para ser visible en analítica. El daño empieza antes del diagnóstico.

[OrigenNat @OrigenNat]

Butyrate does more than improve insulin sensitivity. It's the primary fuel source for colonocytes, the cells lining the colon, and when it runs low those cells switch to glucose fermentation, which compromises the intestinal barrier before any digestive symptom appears. The gut starts failing from the inside long before the metabolism shows it on the outside.

[OrigenNat @OrigenNat]

Phytic acid doesn't just block iron and zinc in that meal. It forms stable chelates that are excreted intact, and the effect compounds with daily consumption. What the post doesn't mention: the trypsin inhibitors reduce actual digestibility of that "complete" protein before it counts as anything. The label says complete protein. The intestine receives considerably less.

[OrigenNat @OrigenNat]

Lo que el gráfico no muestra: el cerebro con APOE4 tiene hipometabolismo de glucosa detectable desde los 30 años, no solo en la vejez. La glucosa empieza a fallar como combustible antes de que aparezca ningún síntoma. Lo que sí acepta con eficiencia es el BHB, que entra por vía alternativa activando SIRT3 en hipocampo y corteza. La pregunta que queda abierta es si la dieta ancestral hipercarnívora era ya una adaptación a esa ineficiencia metabólica, no una causa del problema.

[OrigenNat @OrigenNat]

The molecule that connects all of this is BDNF. Exercise is the most potent natural trigger for brain-derived neurotrophic factor, which drives neuroplasticity, protects existing neurons and promotes the growth of new ones in the hippocampus. It's essentially fertilizer for the brain that the body only produces under physical demand.

[OrigenNat @OrigenNat]

The mechanism Sinclair focuses on is sirtuins, proteins activated by caloric restriction and prolonged fasting. SIRT1 specifically regulates DNA repair and mitochondrial biogenesis. What the body reads as scarcity switches on maintenance systems that constant abundance never triggers.

[OrigenNat @OrigenNat]

The parasympathetic activation doubles when you add slow nasal breathing to that position. Nasal breathing at 5-6 breaths per minute directly stimulates the vagus nerve and drops heart rate variability into recovery mode. The position drains the blood, the breath signals the nervous system it's safe to switch off.