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.
When stress sets off the usual ferocious communication between the hypothalamus and the pituitary, the buck stops at the adrenal glands. They manufacture and release the true stress hormonesâdopamine, epinephrine (also known as adrenaline), norepinephrine (noradrenaline), and especially cortisol.