Endocannabinoid system substrate—specifically membrane fatty acid composition—is the primary determinant of CB1 receptor function, not genetics or receptor density. For years, I’ve been making the case that endocannabinoid system function is not primarily about receptor density or genetic variants, it’s about substrate availability. The composition of fatty acids in cell…
Tag: substrate-driven ECS
Endocannabinoid System (ECS)
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How Diet and Exercise Modulate the Endocannabinoid System
New Evidence for the Substrate-Driven Model I came across a fascinating recent study this week in Nutritional Neuroscience that really validates something I’ve been thinking about for a while. Lima and colleagues just published research showing how diet and exercise reshape the endocannabinoid system in the brain. It all fits beautifully with what I call the substrate-driven model of ECS function. Let me walk you through what they found and why it matters. The Study: Diet, Exercise & Brain ECS The team took young rats and divided them into groups. Some got standard lab chow, others got a “palatable diet” (think: high in omega-6 fats and sugar, like a Western diet). Some rats didtreadmill training for eight weeks, others didn’t. Then they looked at CB1 receptors and NAPE-PLD enzyme levels in three key brain areas: • Hypothalamus – your energy regulation center • Frontal cortex – handles reward and decision-making…