1Department of Immunology and Pediatrics, Medical University Wroclaw, Poland
2Institute of Agricultural Engineering, Wroclaw University of Environmental and Life Sciences, Poland
*Corresponding author: Gerard Pasternak, Department and Clinic of Paediatrics, Immunology and Rheumatology of Developmental Age, Medical University Wroclaw, Poland
Submission: July 31, 2017; Published: September 06, 2017
ISSN: 2576-8816Volume1 Issue2
The 20th century brought a very dynamic development of medicine as well as other fields of science. Leonard Hay flick writes towards the end of the 20th century in his book “How and Why We Age In 1900, as many as 75 percent of US citizens did not survive sixty-five years. Today, these statistics have almost reversed: about 70 percent live more than sixty-five years. What caused such a significant increase in the average life expectancy? Hay flick explains that this should be attributed “primarily to the decline in infant mortality”. Obviously this is a very important factor in raising the population’s life expectancy. Furthermore, it must be born in mind that both, life expectancy and quality of life are influenced by a whole array of environmental factors.