Modern Diseases: Deviations from Nature

modern diseases example: cavities

Modern Diseases: The Price of Modernization

By the time you read this post, it should be clear that humans evolved to be hunter gatherers. Our genes spent millions of years structuring our bodies into efficient mobility machines. Unfortunately for them (and us), the last ten thousand years have changed our environments amazingly fast. Now, our genes are having a hard time catching up, giving rise to modern diseases.

At this point in human evolution culture has become the most rapidly evolving unit of our lives. While diseases of the past no longer plague us due to medical advances, diseases of prosperity have begun to take center stage. These modern diseases, dubbed mismatch diseases in Daniel Lieberman’s The Story of the Human Body, have become the menace of modern society.

These mismatch diseases are the result of our environments differing from what our bodies are adapted for. These diseases can be classified in three ways: too new an experience, too much of something, and too little of something. Each category has many illnesses associated with it. Let’s start with too little of something.

Human Civilization: The Next Step Forward

human civilization progression

Civilized Life: The Inception of Food Production

Compared to the evolution of anatomically modern humans, the rise of human civilization was a much faster process. From farming to smartphones, each step towards the modern era was a gradual process driven by the urge to minimize energy expenditure.

The process by which human civilization advanced is a very interesting story. The ability of humans to analytically recognize and innovate important technological advances was the key to transcending most of the forces of nature. For better or for worse, this innate ability had already evolved within humans in order to cope with the intellectual demands of being a hunter gatherer.

However, in order for human civilization to come into being, one main issue had to be addressed: food production.

Human Evolution: The Biology of Man

human evolution examples

The Story of Human Evolution

Before I write about the various wonders of the biological world I will answer a biological question common to us all: what is the story of human beings in the grand scheme of nature? What is the story of human evolution? We are aware that our species excels at communication, and is very adaptable through culture but it is rather hard to find a source that narrates our strengths and weaknesses as a creature of the Earth.

For the purpose of this post, I will avoid descriptions of each ancestral species leading up to humans but will instead summarize and emphasize the important characteristics (mutations) that are worth noting.