Essay on Survival Of The Sickest By Charles Darwin

1608 Words Sep 6th, 2015 7 Pages
Survival of the Sickest Analysis
In Charles Darwin’s theory of natural selection, Darwin suggests that those organisms that possess certain characteristics that give them an advantage over other organisms, are to be more likely to survive and pass on their traits to other organisms of their species through reproduction. Thus, through evolution, all life on earth is bound to only get stronger and improve its chances of survival - or be completely eradicated, as the organisms that do not possess advantageous traits do not survive to reproduce and the traits that make a species weaker will gradually be eliminated. However, though evolution eliminates unfavorable traits it has allowed countless diseases and afflictions that harm humans, to still exist today. In the book, Survival of the Sickest, Dr. Sharon Moalem questions why there are diseases that have plagued humanity and have not yet been eliminated by evolution. Dr. Moalem claims that the reason why these diseases still afflict millions of people today, is because these diseases have aided humanity in its struggle for survival. Throughout the book, Dr. Moalem examines the diseases present in the modern world and reveals their surprising connection with human survival, as well as investigates how the environment of the past has helped shape our genes. Hemochromatosis is a hereditary disease that is characterized by how it disrupts the way iron is metabolized, causing…

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