For healthy skin, collagen is key: This naturally occurring protein keeps skin smooth and youthful, but our bodies produce less collagen as we get older. The result? Thinner skin, dryness, and more wrinkles.
Definition of BLACK BILE. : a humor of medieval physiology believed to be secreted by the kidneys or spleen and to cause melancholy. ADVERTISEMENT.1681. a humor of medieval physiology believed to be secreted by the kidneys or spleen and to cause melancholy. ADVERTISEMENT. 1681.
Bile is a green liquid material made by the liver and stored in the gallbladder. It surrounds and emulsifies the fat you gobbled down at last night's dinner. After having a pleasant visit in your stomach, food moves into the small intestine and mixes with green bile, which makes fat soluble in water so you can digest food more efficiently.