Color: Many Colors (opal changes color) Opal, the only gem that doesn't fit into any single description of a precious stone, is the birthstone for October. It is said that no two opals are exactly alike. But it is sensitive to moisture and is more fragile than its fellow gemstones. It displays a brilliant array of colors which dazzle the eye.
1: When you are faced with stressful situations, cortisol, epinephrine, and norepinephrine are released by your. kidneys.
Cortisol. 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.he hormone is secreted by the adrenal glands and released into the bloodstream as a fight or flight response to stress.