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Rejuvenation Res 25(5):233242 Cho SH, Chen JA, Sayed F, Ward ME, Gao F, Nguyen TA, Krabbe G, Sohn PD, Lo I, Minami S, Devidze N (2015) SIRT1 deficiency in microglia contributes to cognitive decline in aging and neurodegeneration via epigenetic regulation of IL-1
You are over the age of 50 (when stomach acid naturally declines)
You can also take a vitamin B12 supplement, but make sure you stick to the good stuff
Serotonin interacts with other neurotransmitters , particularly dopamine , which also plays a significant role in mood regulation
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