Interactive Science
The Endocannabinoid System
Click any body region to explore how cannabis interacts with that part of your body. The ECS is the most widespread receptor system in the human body.
CB1 Receptors
CB2 Receptors
CB1+CB2 Receptors
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The Body's Cannabis System
Your body already has a built-in system designed to interact with cannabis. The Endocannabinoid System (ECS) is a network of receptors found throughout the brain, organs, immune cells, and connective tissue — and its primary job is maintaining balance (homeostasis).
600M+
Years the ECS has existed
2
Main receptor types (CB1 & CB2)
100+
Known cannabinoids in cannabis
10
Body regions with ECS receptors
Click a region button or any glowing dot on the body
Scientific context: The endocannabinoid system was only discovered in 1988 and named in 1992, making cannabis research one of the newest and fastest-growing fields in pharmacology. Most of what we know has been discovered in the last 30 years.