A pee color chart can help you understand your health. The color of your pee shows how hydrated you are and if certain things are in your body. For example, dark yellow or brown pee usually means ...

Eye color is a complex genetic trait determined by pairings of genes passed on from each parent. Scientists once believed eye color was determined by a single gene, but advances in genetic research ...

The alcohols produced then react with a diazonium salt to produce a pink to purple color. The intensity of the color produced is proportional to the amount of enzyme present, which is related to ...

You should see a doctor if foamy urine is persistent or accompanied by symptoms like swelling or fatigue. When it comes to your health, it’s normal to worry when something is a little different—say, ...