[Hypertension: novelties 2021].

The past year has been particularly rich in the field of arterial hypertension. Our annual review covers the latest epidemiological studies which show that more than 1.2 billion people have high blood pressure, half of them are unaware of it and that only a quarter of treated patients reach the recommended targets. The impact of poor adherence in young hypertensive patients on cardiovascular events and the effects of intensive treatment in patients over 60 years of age will be discussed. Finally, the adjustment of anti hypertensive treatment in pregnant women with a history of pre-eclampsia according to hemodynamic parameters measured during pregnancy and the effects of potassium supplementation in table salt on cardiovascular events will be presented.