But before you equate weed, sex, and CoD, just stop for a minute and appreciate the fact your body is designed to receive molecules from the cannabis plant... and that you have these cannabinoid receptors even if you’ve never smoked pot. Intelligent design might have something to it, after all.
“Endocannabinoid receptors evolved in every vertebrate animal in the world and are receptive to cannabinoids, so it does show you how universal it is, that we all need that system,” Hyman says. “Humans discovered (cannabis) thousands of years ago and have been selecting it for traits that best fit them medicinally. We found a plant that mimics our endogenous hormones, and the result is thousands of strains of high-potency cannabis throughout the world.” According to Hyman, just as weed is found worldwide, cannabinoid receptor sites are found everywhere in your body, but they’re concentrated in the brain (the CB1 receptors) and immune system (the CB2 receptors).
Basically, humans found something that made them feel good, then bred it specifically to make them feel better, and now we've reached the highest possible level of evolution: the bicycle pot delivery guy.