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.
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.n some cases, cortisol inhibits the production of insulin, a hormone responsible for metabolic functions and blood sugar regulation. When this happens, the results vary from weight gain to more serious health conditions, such as type II diabetes and metabolic syndrome (syndrome X).