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 Stress Response. Cortisol is a chemical hormone produced by your body to manage stress. The stress can be physical, mental and emotional. Cortisol continues to be released when the stress continues. Effects of Cortisol.