Since time immemorial mankind has noticed that certain [[herb]]s, extracts and other natural substances have positive effects on certain maladies. With the advent of modern [[science]], these have been better identified and tested, and many of the active chemicals involved have been synthesized. A great example of this is aspirin (salicylic acid), which was isolated from the source for which it is named, the willow tree (Salix spp.), and then synthesized in the lab. | Since time immemorial mankind has noticed that certain [[herb]]s, extracts and other natural substances have positive effects on certain maladies. With the advent of modern [[science]], these have been better identified and tested, and many of the active chemicals involved have been synthesized. A great example of this is aspirin (salicylic acid), which was isolated from the source for which it is named, the willow tree (Salix spp.), and then synthesized in the lab. |