People using new medecine from rainforest

I think this website is a little bit hard for me but I like the information I found in. for thousands of years, an original groups have extensively used rainforest plants for their health. They have tested with a wide range of plants. The peoples of Southeast Asian forests used 6,500 species, while Northwest Amazonian forest people used at least 1,300 species for medicinal purposes. The success rate for discovering medicinal plants with traditional uses is high because rainforest peoples have experiment with variouscombinations for generations.