What Is the Endocannabinoid System? #brain #neuroscience

Why It Matters

Understanding the endocannabinoid system reframes how clinicians and drug developers approach neurological and psychiatric conditions, opening pathways for targeted therapies and better management of mood, memory, and motor disorders.

Summary

Cannabis has been used for millennia, but modern neuroscience shifted after Raphael Mechoulam isolated THC in the 1960s and showed it binds specific receptors in the brain and body. Researchers discovered cannabinoid receptors are widespread and interact with endogenous endocannabinoids that travel retrogradely across synapses to regulate neurotransmitter release. This endocannabinoid system, present in all mammals, governs homeostasis and influences sleep, memory, mood, motor coordination and reward. Its receptor density in brain regions tied to cognition and emotion links the system to normal behavior and psychiatric disorders.