Contents:
- Medical Video: How to Contour & Highlight Your Nose in Less Than 5 minutes!
- Differences in the shape of the nose in humans throughout the world
- What is the relationship between climate and the shape of the human nose?
Medical Video: How to Contour & Highlight Your Nose in Less Than 5 minutes!
When you are asked to describe the physical characteristics of "Caucasians" or Caucasian race, you might say they generally have white skin, tall bodies, blue or green eyes, and sharp noses. Meanwhile, Asians tend to have dark or dark skin, medium or short bodies, and pug-nosed noses. Have you ever wondered why the shape of the human nose in different parts of the world can vary? Well, researchers have found the answer. Check out the findings of the experts below.
Differences in the shape of the nose in humans throughout the world
Since the late 1800s, a British human body researcher and anatomist named Arthur Thomson has studied variations in the shape of the human nose in various parts of the world. According to his research, it is known that people who live in cold and dry climates tend to have sharp, slender noses. For example in countries in Europe and North America.
Whereas the human population living on the continent with a warmer and humid climate, such as Asia and Africa, is known to have a pug and a wide nose. Unfortunately, the theory of Arthur Thomson has not been fully developed because at that time the data was still limited, until finally another recent study confirmed the answer.
What is the relationship between climate and the shape of the human nose?
Recently, a study conducted by a team of experts from Pennsylvania State University in the United States managed to uncover the reasons for the shape of the human nose to vary in every part of the world. These findings apparently support the theory pioneered by researcher Arthur Thomson.
Even though the shape of a person's nose is genetically determined, there are also other factors that determine, namely human adaptability to climate differences. You might be wondering, what is the relationship between differences in climate with the shape of the human nose? The answer lies in the function of the nose itself.
The nose functions as an air filter and various particles that are inhaled enter the lungs. That is, the nose will help prevent the entry of dirt or dust into the respiratory system. In addition, the nose will also adjust the temperature and humidity of the incoming air so that it is not too cold, hot, or dry for the lungs.
The research, published in the journal Public Library of Science (PLOS): Genetics explains that "Caucasians" have sharp noses to adapt to very cold and dry air. With a sharp and slender nose, even air that is inhaled will not go straight into the respiratory system. The air will be held longer in the nose so that the temperature and humidity can be regulated and warmed before heading to the lungs.
Meanwhile, the noses of Asians or Africans tend to be shorter because the air does not need to be held for long to get warm. Because the air in these countries is warm and moist enough for the lungs. Because of this need to survive and adapt the human nose in each country has a different shape.
