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It explains its role in regulating wakefulness, focus, and energy, as well as its connection to narcolepsy and key neurotransmitters

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As a result, much of the naturally occurring B12-making bacteria has also been reduced and we must find it in other sources
Monitoring immune senescence markers to optimize replacement therapy timing

doi:10.1111/j.1365-2133.2008.08958.x Hepsen S, Sencar E, et al
