Haven't had your blood drawn in years? It's probably time to chat with your primary physician about getting it done. Your blood work can tell you a lot about your health, revealing the truth about ...

Get to know the functions of your heart, blood vessels, and blood itself and how they work together to maintain your health.

Blood tests are a quick and fairly easy way for medical professionals to detect serious health problems. Having your blood drawn might not be much fun, but regular diagnostic tests of your blood can ...

Plasma is the largest single component of blood. It consists of water, vital proteins, and other substances that play a role in coagulation, immunity, blood pressure, and transporting nutrients.

Red blood cells transport oxygen throughout your body, including to vital organs and tissues. They also help your body get rid of carbon dioxide. Too little or too many red blood cells may be ...

A new study by the University of California, Davis, shows how cells work together to avoid a sudden drop in blood sugar.