When a water heater dies, it rarely does so without sending up a flare first. The most important early clue is a subtle but unmistakable change in how your hot water behaves in the days or weeks ...

Here are warning signs to look out for according to Dr. Ajaykumar D. Rao the chief of the section of Endocrinology, Diabetes and Metabolism at the Lewis Katz School of Medicine at Temple University.