Introduction
As a result of better healthcare, people worldwide are actually living longer especially in the developing world. Thus, for the first time in history, people aged over 65years are more than infants aged less than five years. In fact, it is estimated that by the year 2030 (approximately two decades from now), the population of the aged in the human society globally would have hit the one billion figure. This figure represents an eighth of the current global population. More so the increase will be higher in the developing world whereby it is expected that by the year 2030, the ...
