KAVA, an herb, has been used as a ceremonial drink in the Pacific Islands for centuries because of its mellowing effect on mood.
GABA, a neurotransmitter, was shown to relieve anxiety in research published in 2006; however, the study was small, and further research is needed.
5-HTP is an amino acid that spurs production of the brain's happiness chemical, serotonin. Unfortunately, this supplement breaks down easily in liquid.
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