Adrenaline

4-11-2021 links: Hormones reference:

Adrenaline #

• As people age, most tissues become less sensitive to adrenaline and CNS stimulation, and so the body relies increasingly on cortisol to maintain blood glucose.
• Causes the liver to release glycogen.
  • They increase towards mid-morning and peak in the afternoon, decreasing by bedtime - an inverted ‘U’.
  • Furthermore, adrenaline levels in 1st and 2nd morning urine samples do not correlate.
  • So, my levels may not be so terribly low, and the ratio is logical as well: noradrenaline (which is also quite low) is being reserved to be converted into adrenaline later.
• Increases free fatty acids.

Fluctuation #

• After eating breakfast, cortisol (and adrenaline) will return to normal, as blood glucose is maintained by food rather than stress hormones. Adrenaline is lowered by sugar; and it raises during hypoglycemia.
  • Adrenaline stimulates Corticotrophin-releasing hormone which causes the pituaitary to secrete Adrenocortocotropic Hormone which stimulates the adrenal cortex to relese cortisol, which in turn increases blood glucose.