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But what about self-administration of a non-toxic, water-soluble vitamin essential to keep me alive
The brain uses three amino acids tryptophan, tyrosine, and phenylalanine to make the three major neurotransmitters (serotonin, dopamine, and norepinephrine).26 But a 2020 study found seven amino acids that could potentially improve older adults cognitive, social, and psychological functioning: leucine, lysine, isoleucine, histidine, valine, phenylalanine, and tryptophan.27 Similar to NALT for tyrosine, you might see some of these amino acids listed as acronyms
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This is also when the broader health benefits of improved sleep become apparent: better cognitive function, improved mood, enhanced recovery from exercise, and more stable energy
C-terminal octapeptide of cholecystokinin decreases food intake in man
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