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 demographic profile of Sweden has altered drastically due to immigration patterns since the 1970âs. The larger amount of the population in situated in the urban areas; approximately 85% to be precise. Estimated rate of urbanization during 2010-2015 is 0.6% at an annual rate of change.