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…Hair loss, dry mouth or fatigue may prompt a question about nutrients or hormones, but the symptom alone does not establish the answer. Ask what evidence would support the proposed cause, what else could explain the finding and what would c…

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Search looks for your words in titles, descriptions, available articles, learning guides, and video captions when available. The closest matches appear first. Duplicate posts are grouped, with links to other places you can read or watch them. Books, chapters, and reports have topic guides here; the original files and full book text are not available in this encyclopedia. Subscriber posts include a title and public summary; open Substack to read the full post.