Kava can relieve pain and make people calm. It is usually taken as a drug to relax without losing mental clarity in thinking and remembering. Evidence collected in studies show Kava is likely more effective than a placebo at helping calm some mild anxiety.[1]
References
↑Pittler MH, Ernst E (2003). Pittler, Max H (ed.). "Kava extract for treating anxiety". Cochrane Database of Systematic Reviews (Online) (1): CD003383. doi:10.1002/14651858.CD003383. PMID12535473.
Other websites
Media related to Kava at Wikimedia Commons Data related to Kava at Wikispecies