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.
Researchers have found that patients with low levels of folate in their blood are more likely to develop hearing loss (Gok 2004; Lasisi 2010; Gopinath 2010), and that low vitamin B12 levels are associated with hearing loss (Gok 2004) and tinnitus (Shemesh 1993).
Vitamin C for eyes. Vitamin C is a health powerhouse. You can find it in fruits like oranges, kiwi, and strawberries, as well as vegetables like broccoli, mustard greens, and peppers.In addition to providing antioxidants, it can also help slow cataracts and provide needed eye vitamins for macular degeneration.here are vitamins for vision loss that you can take, but none of them produce miraculous results. Getting enough vitamins is important at every age, especially natural vitamins in your food. The functions of vitamins can be numerous.