Doctors often say labs look “normal.” Dr. Mark Hyman explains why that doesn’t always reflect wellness, and what early ...

Using a blood pressure chart by age can help you interpret your results to see how they compare to the normal ranges across groups and within your own age cohort. Monitoring your blood pressure (BP) ...

Men with a PSA level above the median for their age group are at higher risk for prostate cancer. The concept of what is "normal" enters into nearly every aspect of clinical decision making. For ...