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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.

2 results for "lactose intolerance"

L_3_03 Verified Genetics & Origins

L_3_03 — Lactase Persistence and Gene-Culture Coevolution

Lactase persistence — the ability of adults to digest the milk sugar lactose — is the most thoroughly documented case of gene-culture coevolution in the human species. The ancestral mammalian condition is lactase non-per

lactase persistence lactose intolerance LCT gene gene-culture coevolution pastoralism dairy farming

T_2_09 Verified Psychology & Social

T_2_09 — Fear, Anxiety, and Phobias

Fear and anxiety are functionally distinct emotion systems: fear is a present-oriented defensive response to immediate threats (fight-flight-freeze), while anxiety is a future-oriented state of apprehension about potenti

fear anxiety phobia amygdala fear conditioning panic disorder

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