From boso for you:
General information on blood pressure and measurement.

What is high blood pressure?

One refers to high blood pressure or (arterial) hypertension if there is a sustained pressure of 140 mmHg (systolic) and/or 90 mmHG (diastolic). Many people are unaware that approximately 25% of the adult population and around half the over-60s suffer from high blood pressure. High blood pressure can exist for many years without causing any problems. However, the consequence can be serious illnesses, since in the long-term various organs such as the heart, brain, blood vessels and kidneys are damaged.

Regular blood pressure measurements have therefore acquired a high level of significance in our society and in addition to blood pressure measurement in GP surgeries, daily self-measurement of blood pressure at home has also become common. This is because only regular checks can prevent damage or circulation disorders, or recognise them soon enough to enable treatment with medication to be started, for example. In particular, people in the so-called risk groups should take their blood pressure regularly as a matter of course. Particular risk factors include e.g. inherited high blood pressure, age, overweight, diabetes, kidney diseases, stress and food rich in salt.