The Apple iPhone SE is a development of the 5S, taking the same design but refining it slightly with features such as matte edges. It measures 123.8 x 58.6 x 7.6mm and hits the scales at 113g. This means the iPhone SE is slimmer and smaller than the iPhone 5C and the same size as the iPhone 5S.
Both numbers are important to your heart health. A normal blood pressure reading will clock in below 120/80. To put it another way, your systolic will be below 120 and your diastolic will be below 80. (Low blood pressure, called hypotension, occurs when your reading measures lower than 90/60.
The pressure measured when the heart contracts and pumps the blood into the vessels is called systolic blood pressure, and the pressure measured when the heart relaxes and fills up with blood is called diastolic blood pressure. The unit of BP is millimeters of mercury (mmHg). The normal blood pressure range for adults is 120-80 mmHg (systolic should be below 120, while diastolic should be below 80). The ideal blood pressure for men and women (even for women over 40 and for women over 50) can be slightly different.