Blood pressure

Blood pressure is the force that is exerted by the blood on the walls of the arteries as it is pumped by the heart. Blood pressure is measured using two numbers, the systolic pressure (the pressure when the heart contracts) and the diastolic pressure (the pressure when the heart relaxes). Normal blood pressure is usually around 120/80 mmHg, although this can vary depending on age, gender, and other factors. High blood pressure is a condition where the blood pressure is consistently higher than normal, which can lead to serious health problems if left untreated.