Anandamide, also known as N-arachidonoylethanolamine or AEA, is a fatty acid neurotransmitter derived from the non-oxidative metabolism of eicosatetraenoic acid, an essential ω-6 polyunsaturated fatty acid. The name is taken from the Sanskrit word ananda, which means “joy, bliss, delight”.

The 2AG is the ‘capacity’ type molecule, Anandamide is the ‘volume’ molecule.