Final answer:
Beta Blockers, including Metoprolol and Atenolol, are commonly used to manage high blood pressure by blocking the effects of adrenaline on the heart, thus reducing blood pressure and helping treat various cardiovascular conditions.
Step-by-step explanation:
True, Beta Blockers are indeed often used to treat high blood pressure. Drugs like Metoprolol and Atenolol function by targeting and blocking beta receptors on heart muscle cells, which are normally activated by adrenaline, leading to a decrease in heart rate and force of contraction, as well as vasodilation of blood vessels. As a result, there is a reduction in blood pressure. These blockers, especially Metoprolol, which specifically blocks the Beta-1 receptors, and others like Propranolol that block beta receptors more generally, are considered sympatholytic drugs because they mitigate the effects of the sympathetic nervous system. They're not only used for controlling hypertension but are also prescribed for other cardiovascular conditions like chest pain (angina), heart failure, and to manage certain types of arrhythmias.