The South African kanna plant has the surprising ability to alter signals in various brain regions, impacting mood, alertness, and stress ...

Add Yahoo as a preferred source to see more of our stories on Google. The plant, known as kanna or kougoed by the San and Khoikhoi people, was mainly chewed or smoked to stay alert and suppress ...

Sceletium tortuosum is a little succulent plant that grows in the semi-arid Karoo and Namaqualand regions of South Africa. It has a long history of traditional use among the hunter-gatherers of the ...