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.
White or a grey clay-like stool is indicative of a block in bile flow, liver disease, pancreatic disorder, or antacid use (aluminum hydroxide) Black tarry or coffee ground appearance is most commonly due to an upper gastrointestinal bleed (esophagus, stomach, small intestine) when blood and bile mix to produce black.