Over the past decade, there have been major advances in understanding the mechanisms whereby marijuana interacts with the brain in producing psychoactive and potentially therapeutic effects. The discovery of specific gene coding for cannabinoid receptors activated by smoking marijuana, and the finding of endogenous cannabinoids, which also activate the receptors, have transformed cannabinoid research into mainstream science with significant implications in human health and disease

Endocannabinoids: The Brain and Body's Marijuana and Beyond documentsadvances in the discovery and...