Blood Pressure

Blood pressure is the force of blood against artery walls. Optimal blood pressure is considered to be under 120/80 and is a comparison of the greatest pressure to the least amount of pressure of blood against the walls of the arteries.

The top number represents when the heart is contracting, when the force of blood against artery walls is the greatest, and is called systolic pressure.

The bottom number represents when the heart resting in between heart beats, when the force against artery walls is the lowest, and is called diastolic pressure.