Testosterone is the alpha and omega when it comes to anabolic steroids; all anabolic steroids are derived from testosterone; other anabolic steroids are simply altered forms of the testosterone hormone.estosterone is the alpha and omega when it comes to anabolic steroids; all anabolic steroids are derived from testosterone; other anabolic steroids are simply altered forms of the testosterone hormone.
Usually, it's damage from a physical injury or disease. 1  Cancer and other tumors can cause nerve pain. 2  HIV can cause painful nerve damage. 3  Diabetes is a common cause of nerve damage in the U.S. Over time, high levels of glucose in the blood (blood sugar) can injure the nerves. Shingles can be followed by a painful condition called postherpetic neuralgia. This type of nerve pain can be particularly severe and sudden.
Causes. The nerve damage that causes paralysis may be in the brain or spinal cord (the central nervous system) or it may be in the nerves outside the spinal cord (the peripheral nervous system). The most common causes of damage to the brain are: 1  stroke.amage to the spinal cord is most often caused by trauma, such as a fall or a car crash. Other conditions that may damage nerves within or immediately adjacent to the spine include: 1  tumor. ( 2 also called a ruptured or). 3  spondylosis (a disease that causes stiffness in the joints of the spine).