Understand what WBC means in a blood test. Learn about normal ranges, causes of high/low white blood cell counts, differential breakdowns, and how to interpret your results. Includes charts and real-life examples.

Discover the crucial roles of white blood cells as your body's defense system. Learn about all 5 types, their specialized functions, common disorders, blood test interpretation, and science-backed ways to support your immune health.

Understand normal white blood cell count ranges for adults and children. Learn causes of high/low WBC levels, age-specific ranges, factors affecting results, and how to maintain healthy counts.