A urine specific gravity test compares the density of urine to the density of water. This quick test can help determine how well your kidneys are diluting your urine. A urine test is a painless way ...

A urine drug test can quickly detect both illegal and prescription drugs in a person’s system. Doctors, sports officials, and many employers require these tests. Signs of drug use can remain in a ...

New evidence from a six-country study led by the Montreal Children's Hospital and Children's National Hospital shows simple ...

You probably already know your body needs calcium for strong bones. You also need it for your heart, muscles, and nerves to work properly. Too much or too little calcium in your body can lead to ...