At the time of the Romanian Empire, the average citizen can expect to live 28 years. In the early 20 century, America can expect celebrates 48 birthday to him or her. In the early 21, a Japanese woman to reach 80 would not be unusual. Hello to you in a world of 'life expectancy' - a statistical measurement of years a newborn child can expect to live, and accident prevention and is based on expected events.Life abnormal on any number of factors, the spread of the disease to lifestyle choices profile conditions environmental. Genetically speaking, a child who is born in ancient Rome is no different than a child born in New York City in 2005. But he faced the child more Roman infectious diseases, and unhealthy food and water supplies, and criminal activity and the lack of good medical care. All of these factors resulted in the average life expectancy under 30 years old. Child of the benefits of modern New York City programs for the prevention of diseases, food and clean water, medicines developed and economic stability. This means that the average life expectancy of 77 years or more would not be unreasonable.
