Blood flows through our arteries under pressure, this is called blood pressure. Blood pressure is highest when the heart is contracting, forcing blood into the vessels (systole). The heart muscle then relaxes and the blood pressure reaches its minimum value (diastole). Blood pressure that is too high is called hypertension, i.e. high blood pressure. If it is too low, this is called hypotension. The optimal values are at the upper value (systolic pressure) up to 120 mmHg and at the lower value (diastolic pressure) up to 80 mmHg. Hypertension starts at 140/90 mmHg. Support your doctor so that high blood pressure or low blood pressure can be diagnosed quickly. He may also advise you to check and write down your blood pressure at home. Your doctor will give you exact times. Otherwise, start in the morning after getting up. Then at noon and again in the evening. Before the measurement, you should calm down and be relaxed. Think of something beautiful. The wrist measuring device must be held at heart level. Carry out the measurements regularly. Your health will thank you! With 3 measurements per day, the blood pressure diary lasts for over a year. (1148 measurements)