How Much Does Coffee Raise Your Blood Pressure?

How Much Does Coffee Raise Your Blood Pressure? Research shows that consuming 2-4 cups of coffee (200-300mg of caffeine) produces a mean increase of 8.1mmHg in systolic blood pressure and 5.7mmHg in diastolic blood pressure. The changes in blood pressure are temporary, and everything returns to normal in 3-4 hours. How long does a cup