Definitions

A waxy substance found in all of the body’s cells. The body uses cholesterol for a number of important functions, such as manufacturing certain hormones. As most people know, however, too much cholesterol in the blood can be damaging to the heart and… Read More “Cholesterol: Definition and Overview”

A decrease in the number of red blood cells or in the amount of hemoglobin (an oxygen-carrying protein) in these cells that may cause such symptoms as weakness, fatigue, dizziness, shortness of breath, headache, or insomnia… Read More “Anemia: Definition and Overview”