As of 2011, the urban population of Iran constituted 69.1% of the total population, growing at a rate of 1.25% per annum. Therefore, Iran’s population is considered to be mainly living in cities, with the largest segment of the population of 7.3 million people living in the capital, Tehran.10 Life expectancy of Iranians is 73.4 years, with males expecting to live less than females.11 The biggest population segment of Iranians is male and