"The Science Behind the Color of Urine"
After 125 years, scientists have finally discovered that the yellow color of urine comes from bacteria metabolizing waste from red blood cells using an enzyme called bilirubin reductase. This discovery not only explains the origin of urine color but also has implications for health, as the absence of bilirubin reductase is associated with jaundice in newborns and pigmented gallstones in adults with inflammatory bowel disease. Further research is needed to explore the potential links between bilirubin metabolism and various health conditions.