Journal
The science of sleep, explained.
Clear, evidence-based writing on how sleep actually works — and why the gut sits at the center of it. No hacks, no hype.
Gut & sleep
How does gut health affect sleep?
Around 95% of the body's serotonin is made in the gut — not the brain. Here's how diet, the microbiome, and the gut barrier shape how well you sleep.
Read the explainer → Stress & sleepHow does stress affect your sleep?
Stress hits three sleep systems at once — lowering melatonin, jamming the GABA brake, and keeping arousal high. Why "just relax" rarely fixes it.
Read the explainer →More explainers on the way as we approach launch.