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Name:  Chaitanya
Status:  student
Age:  13
Location: N/A
Country: N/A
Date: 2000-2001

How has the human life span increased over the years and why?

There are a wide variety of opinions on this...I'll give mine

The knowledge that germs spread infectious disease was a huge help because it lead to so many personal/professional hygiene measures that prevented the spread of contagious diseases. In this regard the development of modern plumbing possibly has saved more people from early death than any technological/scientific/medical advancement...polio was transmitted mostly by contaminated drinking so many other major diseases. I would put the development of aspirin as a widely used drug and the discovery of the penicillin as close seconds since when measures to avoid contagions fail they help in saving the life. Nutritional advancements of so many kinds have also prevented to some extent many of the severe nutritional deficiencies that cause premature death i.e., beriberi etc.


The human life span has increased from about an average of 22 years(estimated) 2000 years ago to 44 at the turn of the 20th century. Currently, it is difficult to tell due to the advancement of medicine to the point where the average age increases years it seems. It is somewhere around 82 years on the average. Females live 6-7 years longer than males on the average. The newest variable is of course the advancement in genetics. Who knows what will come about from the completion of the Human Genome Project.


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