A transverse section of the adult spinal cord shows white matter in the periphery, gray matter inside, and a tiny central canal filled with CSF at its center. Surrounding the canal is a single layer of cells, the ependymal layer.
Cortisol is commonly referred to as the stress hormone.. The hormone is secreted by the adrenal glands and released into the bloodstream as a fight or flight response to stress. The highest quantities of cortisol are produced in the early morning hours and then production slowly tapers off throughout the day.
This hormone is cortisol, a steroid hormone, and is probably the most underrated of the four bodybuilding hormones overviewed in this article. Cortisol is termed catabolic as it has the opposite effect to testosterone, insulin and growth hormone in that it breaks down tissue.In fact cortisol, which is released by the adrenal glands under conditions of high mental and physical stress and high temperature, is the body's primary catabolic hormone.t is excess cortisol that is the problem for bodybuilders not cortisol per se. The dangers of excess cortisol are: 1  Reduced growth hormone, and testosterone output. 2  Osteoporosis. 3  Reduced muscle and increased abdominal fat. 4  Impaired memory and learning.