Axons are usually surrounded by a fatty substance called myelin. Myelin allows action potentials to propagate quickly from one neuron to another, allowing for rapid signal transmission. It is a critical part of the nervous system and it's absence has devastating effects, as seen in conditions such as multiple sclerosis.
Omega 3 Fats & Vitamin D as Vitamins for Hearing. The high levels of omega 3 fats and Vitamin D generally found in fish, such as salmon, tuna, trout or sardines, can have highly positive effects on hearing loss. Studies have shown that adults who ate fish twice a week had a 42% lower chance of facing age-related hearing loss than non-fish eaters.
Food rich in Vitamin B12 or cobalamine help improve hearing by regulating the formation of red blood cells, assisting in the metabolism of homocysteine, and preventing tinnitus. Sources of Vitamin B12: dairy products, eggs, lean beef, shellfish. Food rich in Folic Acid lowers the production of homocysteine which is thought to be the cause of some kinds of hearing loss and boosts circulation of blood to the inner structures of the ear.