If you prefer reading instead of watching a video, here are a few articles on the subject.

• Anandamide — Wikipédia

• The Endocannabinoid System and Physical Exercise - PMC

• Anandamide as an intracellular messenger regulating ion channel activity - PubMed

• Endocannabinoid System: A Simple Guide to How It Works

• Brain activity of anandamide: a rewarding bliss? - PMC

• Le système endocannabinoïde central | médecine/sciences

• Elevation of endocannabinoids in the brain by synthetic cannabinoid JWH-018: mechanism and effect on learning and memory | Scientific Reports

• Endocannabinoid System and Synaptic Plasticity: Implications for Emotional Responses - PMC

This list could go on forever.