In 1990, scientists discovered a very powerful receptor system inside each of us that’s only job is to maintain homeostasis, or the mind & body's balanced state of well-being.
This system is called the Endocannabinoid System (ECS).
This system performs different tasks but the goal is always the same, a stable internal environment despite fluctuations in the external environment.
Basically, our body was hardwired for cannabinoids.