The Atlas

Understanding ME/CFS

A structured knowledge base built for clarity, built for limited energy.

A comprehensive guide to the disease: core features, triggers, severity, biological findings, and diagnostic criteria.

Post-exertional malaise is the defining feature of ME/CFS. Learn what it is, what triggers it, and why it matters.

Browse 6113 structured studies by topic, evidence level, and research paradigm.

Explore research organized by biological domain: immune, neurological, metabolic, and more.

New to ME/CFS research? Find your path based on your situation.

Evidence should be legible. Weak evidence should not look strong.

PEM is central. It must not be reduced to a footnote.

Uncertainty must be visible, not hidden.