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.
Local Neural Fatigue. In contrast to central nervous system fatigue, which affects the whole body, when the local nerves that join the nervous system and muscle together are drained, the strength and functionality of a given muscle group will be affected.âm not going to get into a big scientific rant on the various aspects of the nervous system and what they do. Really all you need to know is that the central nervous system includes your brain and spinal cord and connects to your muscles through the peripheral nervous system.