The Journal
The research behind our posts, in plain words
Each guide takes one question from our posts and explains what the evidence says, where it comes from, and what it does not mean.
Blood, hair or urine? Which sample to use, how a home urine test works, and the prep checklist for the days before.
25 Sep 2026SupplementsYour Vitamin D Label, ExplainedWhere vitamin D3 comes from, what else is in the capsule, and three things to check when you compare two bottles.
25 Sep 2026Heavy metals · Home & airThe Hidden Metals GuideTwenty metals: where each one turns up in everyday life, and what it can do to the body at high exposure.
24 Sep 2026Home & airAlways On, ExplainedA 2026 study in 60 homes: why an air purifier on 'always on' cleaned more than 'auto', and what the study does not show.
24 Sep 2026Heavy metals · Kitchen & foodHeavy Metals, in Plain WordsLead, mercury, arsenic and cadmium: where they come from, what the research says, and simple habits that lower what you take in.
22 Sep 2026Nothing matches that yet. Try another word, or ask us to write about it.
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From Evmara
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