Canada seems to be in the 4th stage of the Demographic Transition model. There aren't as many children because the amount of people having children is declining. Much of the population are older. From ages 20 to 60. This means that death rates are down and people are living longer healthier lives. Canada is a developed country so it has access to health care and other medical services. Like many other countries, women tend to live longer lives than men.
Since Canada is a developing country 99% of the population has access to water and sanitation. Nearly 82% of Canada's population is living in urban areas. Canada has a birth rate of 10.2 births for every 1000 people while its death rate is 7.9 deaths per 1000 people. Canada's population is growing at a rate of 0.81%.