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.
The population percent change for all areas for 2010 to 2016 is shown in Figure 4 and for Hagerman shows it has 26.1% Population Change which is the most of all placesin the area. Comparing Population Change to the United States average of 3.2%, Hagerman measures substantially bigger.