Kava kava is an herb which is native to areas of Polynesia and Melanesia. In these cultures it was originally used as an intoxicating agent for celebrations and cultural celebrations. When taken in small doses, it can calm anxiety.
Some naturopathic doctors prescribe kava kava for eveyday stress-related activites, such as long airplane flights, professional presentations, public speaking appearances 
and interpersonal confrontations. Kava is also given to help with symptoms of PMS.
Kava kava was given in the Polynesian villages to calm combative behavior within tribes of families. The South Pacific people have said that “when kava enters the heart, there can be no hate.” It dispels frustration so you can work through conflict and find peaceful resolution.
I took some kava kava elixir two nights ago to help me calm down. I place about five drops of the elixir under my tongue and it was very effective at helping me to feel warm and relaxed. I was excited about my birthday and all of the celebrations that my friends were having for me. I was able to relax into my birthday celebrations and enjoy my special day, (which lasted all weekend), without feeling rushed and discombobulated. I have a tendency to be very high-strung. The kava kava did work great and I was able to control my emotions without my emotions controlling me.
Warning: Do not take kava with alcohol. Do not use kava if you have hepatitus or other serious liver conditions. Avoid taking kava kava in any form if you are pregnant or nursing a baby.