Hardening of the arteries, also called atherosclerosis, occurs when fat, cholesterol, and other substances build up in the walls of arteries. These deposits are called plaques.efinition. Hardening of the arteries, also called atherosclerosis, occurs when fat, cholesterol, and other substances build up in the walls of arteries. These deposits are called plaques. Over time, these plaques can block the arteries and cause problems throughout the body.
CNS fatigue (CNS = central nervous system) is a slightly more convoluted phenomenon, but the term is thrown around frequently in the world of fitness. By itself, the acronym evokes notions of frailty, complication, and extreme caution.NS fatigue (CNS = central nervous system) is a slightly more convoluted phenomenon, but the term is thrown around frequently in the world of fitness. By itself, the acronym evokes notions of frailty, complication, and extreme caution.
Neuropathy is when nerve damage interferes with the functioning of the peripheral nervous system (PNS). When the cause canât be determined, itâs called idiopathic neuropathy. The PNS carries information from the central nervous system (CNS), or brain and spinal cord, to the rest of the body. There are three kinds of nerves within the PNS. Sensory nerves relay messages from the senses to the brain.