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The Journal

The science, written plainly.

Mechanisms, not marketing. What the research actually shows about gut barriers, cellular energy, dermal repair and recovery — and where the honest limits are.


The gut–longevity axis: why ageing starts in your intestines

Featured · Microbiome science

The gut–longevity axis: why ageing starts in your intestines

How intestinal permeability drives the low-grade inflammation that accelerates collagen loss, insulin resistance and cognitive fog — and what repairs it.

12 August 2026 · 7 min read

Science

Mechanisms and evidence — what the research shows, and where it stops.

Capacity ageing

Longevity science

Capacity ageing: why reserve, not years, decides how you age

Ageing is the slow loss of spare capacity. The six numbers that describe your margin, and which interventions actually move them.

19 August 2026 · 11 min read
NAD+ depletion: the quiet reason forty feels different

Longevity science

NAD+ depletion: the quiet reason forty feels different

NAD+ levels can fall by half by mid-life. What the coenzyme does, why it declines, and whether NMN supplementation is worth the money.

5 August 2026 · 6 min read
PDRN and peptides: signalling repair rather than adding moisture

Dermal biology

PDRN and peptides: signalling repair rather than adding moisture

Most skincare hydrates. A smaller category instructs fibroblasts to rebuild. The difference between occlusion and signalling, explained.

28 July 2026 · 5 min read
Sleep, magnesium and the repair window you are probably wasting

Recovery science

Sleep, magnesium and the repair window you are probably wasting

Growth hormone, collagen synthesis and autophagy all run on the night shift. Why recovery, not training, is usually the limiting factor.

21 July 2026 · 6 min read

Gut health

Barrier integrity, microbial diversity and the absorption everything downstream depends on.

The gut-longevity axis

Microbiome science

The gut–longevity axis

How intestinal permeability drives the low-grade inflammation that accelerates collagen loss and cognitive fog.

12 August 2026 · 7 min read
Sleep, magnesium and recovery

Recovery science

Sleep, magnesium and the repair window

Growth hormone, collagen synthesis and autophagy all run on the night shift.

21 July 2026 · 6 min read
Gut formulations

The range

Formulations for the gut

Zinc L-carnosine, L-glutamine and the synbiotic pairing that rebuilds the barrier.

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New section

Neuroscience

Seven in-depth pieces on neuroplasticity, metacognition, L-theanine and focus, brain ageing and the supplements that support each pathway.

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