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WikiProject Chemicals (Rated Stub-class, Low-importance)
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I know this page needs a lot of work, but I think that the major kavalactones should have their own pages rather than a single page about all of them. Please add or change anything to improve it. Wikieditor12 (talk) 18:23, 28 September 2008 (UTC)

I'm not much of a wikipedia editor but I've come across some information from a book. Herbs & Natural Supplements: An Evidence-based Guide (Second Edition). © 2007 Elsevier Australia. All of the information here comes from two of the studies cited by the book.

D,L- kavain has an effect on the amygdalar complex that appears to promote sleep, compared to placebo (holm 1991). EEG studies have demonstrated that D,L- kavain induces a dose-dependent increase in delta, theta, and alpha-1 brainwaves but a decrease in alpha-2, and beta brainwaves (frey 1991).

Frey R. Demonstration of the central effects of D,L-kawain with EEG brain mapping. Fortschr Med 109.25 (1991): 505-8.
Holm E et al. The action profile of D,L-kavain: Cerebral sites and sleep-wakefulness-rhythm in animals. Arzneimittelforschung 41.7 (1991): 673-83. (talk) 02:11, 11 July 2009 (UTC)