What is the reason why people in the south are short?

Usually when southerners mention northerners, the first thing they think of is that northerners are generally much taller than southerners. And if you describe northern beauties, they usually describe them as tall and elegant. Many people don't understand why this happens. Although there are differences in climate and diet, the heights are different. What's going on?

What is the reason why southerners are short?

The first is climatic reasons. Cold areas can stimulate human growth hormone more than warm areas. And because the weather is cold, people will consume more food, which of course makes it easier for them to grow taller. Therefore, people in cold regions such as Russia and Yugoslavia are generally very tall, and the north of our country is of course no exception. In the south, rice and pork are almost the absolute staple food, while in the north, most people are used to eating pasta, beef, mutton, etc., which of course have different effects on the growth of bones and body shape.

Based on current research, we know that height is a trait controlled by multiple genes. The so-called traits, in layman's terms, are the appearances of organisms. Polygenic control means that mutations in many genes affect height.

In contrast, tropical animals do not have this need. So during millions of years of natural evolution, the two sides went in different directions. On the other hand, the colder the weather, the slower the growth of animals will be. Their lifespan will be longer than that of tropical animals, and their growth period will be longer, which is more conducive to their body growth. This is why people and animals in frigid zones are generally larger than those in tropical zones.

Another factor is the influence of eating habits. Northerners mainly eat pasta, which has a high starch content. In addition, they like to eat beef, mutton, etc., and like greasy dishes, so the protein in them is high and the body absorbs more. The physique becomes stronger, the immunity is enhanced, and the development of bones is well promoted. People in the south, on the other hand, like to eat rice and light dishes, such as vegetables. Also because of the climate, the south has abundant rainfall and the air is relatively humid. If you eat something with strong flavors, such as chili peppers, it is easy to get a sore throat and sore throat. Therefore, people here like to make soup, boil herbal tea, etc. Due to the difference in diet, there has been a difference in height from generation to generation over time. With the continuous improvement of living standards, southerners are aware of this common problem and are trying their best to make up for it. Their nutrition is more comprehensive, and their heights have increased from generation to generation. In the past decade, the height gap between the north and the south has been slowly narrowing.

Many foodies in the south go to the north to eat meat, because in the south they usually buy a few dollars' worth of meat, chop it up and stir-fry it with vegetables, and it only tastes like meat, which is not satisfying at all. But in the Northwest, people stew meat in a large pot weighing more than ten or twenty kilograms at a time, which is quite enjoyable to eat.