What is kava?

What is kava ()? Kava is also known as Piper methysticum, awa, kava-kava, kew, tonga, ava, ava pepper, intoxicating pepper, kawa, kava pepper, kava root, rauschpfeffer, sakau, tonga, wurzelstock, and yangona.Kava has been used to induce and improve sleep, and to decrease anxiety, nervousness, stress, and restlessness.Kava has not been approved by the FDA to treat any disease, and it should not be substituted for prescription medications.Kava may also have uses other than those listed in this product guide.