The human body contains ... of new types of cells is the result of DNA "turning on" and "turning off" different sections of the information it stores. Within every cell (except red blood cells ...

This test measures the levels of the main types of white blood cells in the body. Lymphocyte count is one part of a complete blood count (CBC), which is a larger whole blood test. Doctors may ...

And your white blood cells are like police looking for germs. There's a lot going on inside you! Blood transports materials around the body and protects against disease. It contains: ...