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In older electrochemical models, the breath sample passes through a potassium dichromate solution, where ethanol reacts with acidic dichromate ions in a redox reaction: ethanol is oxidized to acetic acid, while orange dichromate (CrO) reduces to green chromium ions (Cr), with the color intensity quantified photoelectrically

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When researchers manipulate this brain region, they can also drive animals to seek out or avoid water, regardless of how hydrated that animal might be

Glycine and proline, key amino acids in collagen, can be supplemented through bone broth or collagen peptides

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Protein: recommended intake, quality sources, timing of consumption, and more [1:17:30]