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What Is The Endocannabinoid System?

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What Is The Endocannabinoid System?
By Melissa Sherrard  
Whether our reasons have been medical, spiritual, or recreational, we've been using cannabis as a species for thousands of years. However, it wasn't until recently that we've started to understand how marijuana affects us in so many ways. Here we briefly describe what is known as the endogenous cannabinoid system (or endocannabinoid system) that is present in almost all vertebrates.
Discovered piece by piece since the 1960s, the endocannabinoid system (ECS) works to promote homeostasis, which in a biological sense is stable internal environment despite external fluctuations and circumstances. The ECS is composed of a huge network of receptors throughout much of the body (including the brain and other organs, connective tissues, glands, and the central and peripheral nervous systems) and even though these receptors do different things the aim of achieving homeostasis at every level of the body is always the same.
Blood s…