RESEARCH BASE

Search 3,721 documents across 34 fields — every claim tier-rated by evidence

3,721 Documents 34 Sections 43,625 Citations 34,852 Keywords Indexed 4 Evidence Tiers

3,633 are the core, quality-scored corpus (34 lettered sections — see How We Work); the remaining 88 are cross-corpus synthesis documents (68 InterDocs, 12 Connections, 8 Theories) also indexed here.

7 results for "hygiene"

X_4_20 Verified Medicine & Healing

X_4_20 — Autoimmune Disease Rise & Hygiene Hypothesis

The dramatic rise of autoimmune and allergic diseases in industrialized nations over the past half-century — while these conditions remain comparatively rare in developing countries — represents one of the most important

autoimmune disease hygiene hypothesis old friends hypothesis microbiome Th1 Th2
J_3_13 Verified Ancient Technology

J_3_13 — Ancient Plumbing and Sanitation: Urban Water Systems

The management of clean water supply, wastewater removal, and human waste sanitation in ancient cities represents one of the most important — and most often underappreciated — technological achievements of the pre-modern

plumbing sanitation sewage drain Indus Valley Roman
X_5_12 Credible Medicine & Healing

X_5_12 — Occupational Health: Work, Hazards, and Worker Well-Being

Occupational health (occupational medicine) is the branch of medicine and public health concerned with the relationship between work and health — encompassing the prevention, diagnosis, and management of diseases and inj

occupational health occupational medicine workplace hazards Ramazzini industrial hygiene ergonomics
X_4_06 Verified Medicine & Healing

X_4_06 — Dentistry and Oral Health History

Dentistry — the treatment of diseases and conditions of the oral cavity — has evolved from folk remedy and brutal extraction to a sophisticated medical specialty. Ancient: evidence of dental work extends to the Neolithic

dentistry oral health tooth decay dental surgery Pierre Fauchard dental prosthetics
X_4_09 Verified Medicine & Healing

X_4_09 — Public Health and Sanitation

Public health and sanitation — organized efforts to prevent disease, promote health, and prolong life through collective action — have arguably saved more lives than all other medical interventions combined. Clean water,

public health sanitation clean water sewage hygiene epidemiology
X_3_16 Verified Medicine & Healing

X_3_16 — Allergy & Autoimmune Disease: Immune Dysregulation and Self-Recognition

Allergy and autoimmune disease represent opposite failures of immune discrimination: allergy is an exaggerated immune response to harmless environmental antigens (allergens), while autoimmune disease involves immune atta

allergy autoimmune disease IgE anaphylaxis hygiene hypothesis type 1 diabetes
L_5_04 Verified Genetics & Origins

L_5_04 — Ancient Microbiome and Paleomicrobiology

Paleomicrobiology — the study of ancient microorganisms through the application of molecular techniques (ancient DNA extraction, metagenomics, proteomics) to archaeological and paleontological material — has revolutioniz

microbiome paleomicrobiology ancient DNA aDNA dental calculus coprolite