Dark amber, brown, or red-tinted urine may be a symptom of kidney failure. You should contact your doctor if you notice persistent changes in the color of your urine. An increase in proteins ...

Dark gray eyes have a bit more melanin in the front layer than pale gray eyes. Black is not an eye color. While some eyes may look black, they're either just a very dark brown or large pupils. Eye ...

Period blood color can change from bright red to dark red, pink, or brown at different points during menstruation, though it's not typically an indicator of your overall health. Color can change with ...

Some paint colors, or even types of paint, are harder to maintain than others. For example, it’s harder to fill in a scratch if the car color is pearlescent or has a layer of metallic flake. Scratches ...

A better understanding of type Ia supernovas could help solve the mystery of dark energy — the strange force that is causing the universe to expand at accelerating rates. That's because ...

The 2025 Formula 1 season gets underway in Bahrain, with all 10 teams gathered on track for the first time this year for pre-season testing. However, you may notice paint splashed across the liveries ...

These are small brown spots on your iris that can make your eyes look like they’ve changed color. They’re harmless but should be checked out by an eye doctor. You can also develop iris nevi, which are ...

People who have medium to dark skin tones get dark spots and patches because something triggers their skin to make extra melanin, the substance that gives skin its color. Many everyday things can ...

Dark or black mucus sometimes returns to a regular color quickly. This may happen when temporary exposure to a pollutant, such as smoke, ends. When other factors are responsible for the change in ...