Hemp-Green.com @hempgreenhk The existence of #CBD #cannabinoid #receptors in the #brain was #discovered from in vitro studies in the #1980s, with the receptor designated as the cannabinoid receptor type 1 or #CB1. The #DNA sequence that encodes a G-protein-coupled cannabinoid receptor in the #human brain was identified and cloned in #1990. These discoveries led to determination in #1993 of a second brain cannabinoid receptor named cannabinoid receptor type 2 or #CB2. . A #neurotransmitter for a possible endocannabinoid system in the brain and #peripheral #nervous system, #anandamide (from 'ananda', Sanskrit for 'bliss'), was first characterized in 1992, followed by discovery of other #fatty #acid neurotransmitters that behave as endogenous cannabinoids having a low-to-high range of efficacy for stimulating CB1 receptors in the brain and CB2 receptors in the periphery. #hk #hongkong #cbdisolate #thcfree #hemp #healthylifestyle (at Hong Kong) https://www.instagram.com/p/CAnJ2kOgQ8t/?igshid=vyt1gtd97bxn