Introduction. Beta-blockers, also known as beta-adrenoceptor blocking agents, are medications used to treat conditions such as angina, heart failure and high blood pressure. They decrease the activity of the heart by blocking the action of hormones like adrenaline.
1 The concept of âdemographic changeâ describes a populationâs age structure adjusting to. changes in living conditions. Consequently, changes in thcomposition of a societyâe s age. structure are the result of social shifts. (. 2  cf. . 3  theory of first and second demographic transition.
Roman Catholic 85%, Protestant 15%. Demographic profile: Panama is a country of demographic and economic contrasts. It is in the midst of a demographic transition, characterized by steadily declining rates of fertility, mortality, and population growth, but disparities persist based on wealth, geography, and ethnicity.