With the increase of life years, health problems are rising, statistics show. Blood pressure is particularly affected. High blood pressure can cause strokes in heart attacks to avoid these life-threatening events, doctors recommend lowering high blood pressure. There are also different therapies, one of which is a group of dehydrating drugs called diuretics. It is believed that the active substance hydrochlorothiazide (HCT) contained in it increases the risk of developing skin cancer, warns the German heart foundation and recommends explaining cardiologists, but warns against abrupt discontinuation of diuretics without alternative antihypertensive therapy.