Feb 22, 2025an a1c test result shows the average blood sugar level over the past 2 to 3 months. Jan 21, 2026some studies suggest that the average healthy adult will get enough water if they take in about 11.5 cups (2.7 liters) to 15.5 cups (3.7 liters) of total fluid. Dec 24, 2025a diagnosis of high blood pressure is usually based on the average of two or more readings taken on separate visits.
But the average age is 51 in the united states.