Variability in normal ranges can be attributed to several factors:
Age: Normal ranges can differ significantly between infants, children, adults, and the elderly. Sex: Men and women may have different normal ranges for certain physiological measurements. Ethnicity: Genetic factors can cause differences in normal ranges among different ethnic groups. Lifestyle: Factors like diet, exercise, and stress levels can influence normal ranges. Altitude: People living at higher altitudes may have different normal ranges for things like oxygen saturation.
