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.
What Causes High White Blood Cell Counts? White blood cell counts are elevated when the body is fighting an illness or disease, so a high count is indicative of an infection. Often, your doctor will order another round of tests after he or she determines you have a high white blood cell count.
It might be time to get a new doctor then....although I think that a high white blood cell count is usually caused by infection or something along those lines. Some info from the Mayo Clinic: White blood cells (leukocytes) help fight infection in your body.