i realize this post is kind of old, but i just found this site; so there ya go...anyway; i lift three to four times a week and boulder on top of that and kava has been great for helping me unwind at night as well as get amazingly deep sleep after dealing with mild insomnia for pretty much my whole life...my recovery ability has greatly increased due to the sleep and kava has no affect on my appetite, so thats a plus...also; i wake up completely energized and ready to go after a night of kava...i work a physical job 7-9 hours a day, five days a week, so its often hard to find the energy after a day of work to go to the gym and spend the better part of an hour intensely lifting heavy weights; but my energy levels have stayed up due, i think, to the actual deep, restful sleep i have been getting lately...
so; its a plus for me