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.
The release of cortisol is regulated by the pituitary gland in the brain and is activated during times of internal and external stress. Cortisol helps activate, protect and defend the body when the body is under attack e.g. internal inflammation and external stressors.