Herbalism

Kava is one of the top selling herbal supplements in the world. Known for its calming qualities, kava’s roots can be traced to the South Pacific Islands, where it was used for medicinal purposes and in ceremonial gatherings. In Hawaii, kava is more commonly known as awa (ah-va). As Heidi Chang reports, the plant is […]

Maggie Villiger reports that the herbal supplement ginkgo biloba may be able to treat altitude sickness.