You can learn a lot about the state of your health by the color of your urine. Pale yellow or clear is usually a sign that things are normal and you're well-hydrated, according to the Mayo Clinic.

May 25, 2014— -- intro: Your body is about 60 percent water. Lose even 1.5 percent of that H2O -- the tipping point for mild dehydration -- and your mood, energy levels, and cognitive function ...

Aging is the process of getting older. In biology, aging refers to how, over time, the cells in our bodies wear out or get damaged. They no longer work as well as they used to. Some visible signs of ...