That's a good question. I can imagine that there was a time before there was life on Earth, and then clearly there was a time X-hundred thousand years or a million years later when there were things that we would all recognize as biological.
A high count indicates the presence of inflammation in the body. Because white blood cells are calculated by the number of cells per volume of blood, test results can vary between labs. Different labs use different degrees of measurements for the white blood cell count.
What does a high white blood cell count mean. When a high white cell count is present, infection is usually the first cause that's considered and your doctor may follow up by ordering a differential count. This reveals the quantity of each type of white blood cell present which can give a clue as to the kind of infection that's present. For example, eosinophil counts go up with parasitic infections as well as with allergic disorders. Medications can also be a cause of a high white blood count. What does a low white blood cell count mean