heartAug 9, 2026
Why your heart rate stays elevated after exercise
Exercise may have stopped, but your cardiovascular system is still restoring balance.
Evidence strength: 3 of 5 — Moderate
The Physiology Edit
Your body is constantly adapting. We explain how.
Evidence-based stories about exercise, performance and human physiology.
Explore the body
Movement, explained from the inside.
Inside your body
An index of the systems we cover
Six entry points into human physiology. Each one collects our reporting on how that system responds to movement.
- 01
Heart
Cor · 18 stories
Rate, rhythm, stroke volume and the limits of cardiac output.
- 02
Brain
Cerebrum · 12 stories
Effort perception, central fatigue and motor control.
- 03
Lungs
Pulmones · 9 stories
Ventilation, gas exchange and why breathing rarely limits you.
- 04
Muscle
Musculus · 21 stories
Fibre types, damage, repair and the machinery of contraction.
- 05
Hormones
Hormona · 14 stories
Signals that set the terms for adaptation and recovery.
- 06
Circulation
Circulatio · 11 stories
Blood flow, blood pressure and oxygen delivery under load.
Featured
Cardio
Why your heart rate stays elevated after exercise
Exercise may have stopped, but your cardiovascular system is still restoring balance.
6 min readEvidence strength: 4 of 5 — Well established
Female Physiology
We have spent decades studying exercise. We haven’t spent nearly enough of them studying women.
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
How we read a study before we write about it
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.
01
What we know
Findings replicated across independent samples and study designs.
02
What we don’t
Small samples, short trials, populations that were never studied.
03
What it means
Effect sizes translated into terms that matter for a real body.
04
Who reviewed it
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.
Evidence strength: 3 of 5 — Emerging
- Evidence strength: 1 of 5 — Speculative
Mechanistic or anecdotal only.
- Evidence strength: 2 of 5 — Preliminary
Few small or short studies.
- Evidence strength: 3 of 5 — Emerging
Consistent but incomplete evidence.
- Evidence strength: 5 of 5 — Well established
Replicated across populations.