The color of your urine can reveal hydration, diet, and when it may be time to pay closer attention to your health.

ATLANTA — With temperatures rising in many parts of the country, there's an easy (some might say gross?) way to check your hydration levels. The color of your urine can show how well you're hydrated.

So far, this series of columns has discussed Dr. Greger’s advice on what we should eat every day for optimal health, as ...