The problems included a decrease in the production of myelin.

包括髓磷脂产量下降。

They can travel more quickly if the nerve is covered in myelin.

如果经被髓鞘覆盖，它们可以快地移动。

Many research teams are studying how to repair myelin in MS patients.

很多试验团队正在研究如何修复MS患者髓磷脂。

As you repeat an action, a fatty tissue called myelin covers the axons of your neurons.

当你重复一个动作时，一种叫做髓鞘脂肪组织覆盖在经元轴突上。

For example, some nociceptors are attached to fibers with slightly more conductive, fatty myelin than others.

例如，有些伤害感受器依附于经纤维，就会具有传导作用，髓磷脂所富含脂肪也多一些。

This myelin is produced by Schwann cells which are a group of cells that support neurons.

髓鞘质是施万细胞产生；施万细胞是支持经经胶质细胞。

Absence of myelin sheath means that the nerve impulses become slow and sluggish.

失去髓鞘后，经冲动传导会变得迟缓。

Myelin speeds up nerve impulses, allowing actions associated with certain neurons to be performed with much less mental energy.

髓磷脂加快了经冲动速度，使得与某些经元相关动作可以用少能量来完成。

Typically, individuals slowly recover over several months as there's regrowth of the myelin on peripheral nerves.

通常，随着周围经髓鞘再生，患者会在几个月后缓慢恢复。

This myelin is produced by oligodendrocytes, which are a group of cells that support neurons.

髓鞘由支持经元少突胶质细胞形成。

In particular, as you reach old age, the myelin sheath covering your axons wears down, and other neuronal structures degrade.

特别是，当你年纪大了以后，包裹轴突髓鞘质会发生磨损，其它经元结构也会衰退。

Schwannian stroma is a connective tissue from non-neuronal cells that forms myelin, which insulates the axons of the mature neurons.

Schwannian基质是一种来源于非经元细胞结缔组织，可形成髓鞘，使成熟经元轴突绝缘。

Neural fibers are wrapped in a fatty substance called myelin.

经纤维包裹在一种叫做髓磷脂脂肪物质中。

Surrounding the axon is a myelin sheath, which is actually just insulation.

轴突周围是髓鞘，实际上只是绝缘层。

Some neural fibers have as many as 100 layers of myelin.

一些经纤维有多达 100 层髓磷脂。

And it's this myelin covering, or sheath, that seems to change with practice.

而髓磷脂包裹程度会随着 我们进行练习 而变化。

Usually that size difference comes from a fatty substance called myelin that speeds up the conduction of electric signals.

通常这种大小差异来自一种叫做髓磷脂脂肪物质，它可以加速电信号传导。

And fibers with thicker layers of myelin can conduct signals 100 times faster or more than those with thinner ones.

髓磷脂层较厚纤维传导信号速度比髓磷脂层较薄纤维快 100 倍或多。

Together these genetic and environmental influences might lead to the body not killing off immune cells that target myelin.

基因和环境因素共同影响可能导致机体不能清除掉那些攻击髓鞘免疫细胞。

Ultimately the inflammation damages the myelin or the neurons themselves in the spinal cord.

最终造成炎症反应会损伤脊髓经细胞或其髓鞘。