Conduction velocity is the speed at which electrical signals travel along axons and is a crucial determinant of neural communication. Inferences about conduction velocity can now be made in vivo in humans using a measure called the magnetic resonance (MR) g-ratio. This is the ratio of the inner axon diameter relative to that of the axon plus the myelin sheath that encases it. https://www.roneverhart.com/Tokyo-Milk-Honey-The-Moon-Bon-Bon-Shea-Butter-Rich-Lotion/