Cannabis used to be quite the mystery. A hundred years ago, all scientists really knew was that cannabis plants produced chemicals which interacted with our bodies in strange, sometimes unpleasant ways. Over the years, however, researchers have been devoting more and more time to the study of cannabis and the way it interacts with humans and animals. During their research, they found that cannabis produces more than 100 chemical compounds called “cannabinoids.” They found that these cannabinoids are able to cause changes in the body due to their interactions with a previously undiscovered body system called the endocannabinoid system...