The Physiology Edit
Evidence-based stories about exercise, performance and human physiology.
Movement, explained from the inside.
Inside your body
Six entry points into human physiology. Each one collects our reporting on how that system responds to movement.
Cor · 1 story
Rate, rhythm, stroke volume and the limits of cardiac output.
Cerebrum · 0 stories · Coming soon
Effort perception, central fatigue and motor control.
Pulmones · 0 stories · Coming soon
Ventilation, gas exchange and why breathing rarely limits you.
Musculus · 0 stories · Coming soon
Fibre types, damage, repair and the machinery of contraction.
Hormona · 0 stories · Coming soon
Signals that set the terms for adaptation and recovery.
Circulatio · 0 stories · Coming soon
Blood flow, blood pressure and oxygen delivery under load.
Featured
female-physiology
Your hormones change throughout the menstrual cycle. But does your performance? The research is far less predictable than social media makes it seem.
Female Physiology
This section covers the menstrual cycle, ovarian hormones, hormonal contraception, pregnancy and postpartum, perimenopause and menopause, cardiovascular physiology and sex differences in adaptation — with an evidence-first approach that is explicit about the limits of the current literature.
Explore female physiologyResearch, translated
Every article separates three things that popular coverage tends to blur: what we know, what we don’t know yet, and what the finding actually means in practice.
Findings replicated across independent samples and study designs.
Small samples, short trials, populations that were never studied.
Effect sizes translated into terms that matter for a real body.
Physiologists read our drafts before publication, and we say so.
Evidence strength legend
Each story carries a rating for the weight of evidence behind its central claim. It describes the literature, not our confidence in the writing.
Mechanistic or anecdotal only.
Few small or short studies.
Consistent but incomplete evidence.
Replicated across populations.
Your hormones change throughout the menstrual cycle. But does your performance? The research is far less predictable than social media makes it seem.
Your workout stops instantly. Your physiology doesn’t. Here’s what your heart-rate recovery can reveal about your nervous system, circulation, and recovery. Read Below!