Why are northerners taller and stronger than southerners?

The higher the latitude (north), the farther away from the equator, the colder the weather. People need to reduce the unit energy loss and increase the body surface area, so northerners are taller. On the contrary, southerners, close to the equator, have to reduce their body surface area in hot weather, so they are shorter. Just as the Northeast Tiger is much bigger than the South China Tiger, it is a truth.

The first reason is the climate. Cold areas can stimulate human growth hormone more than warm areas, and because of the cold weather, people will eat more food, and of course they will grow taller more easily. Therefore, people in cold areas such as Russia and Yugoslavia are generally very tall, and northern China is no exception.

The second is the diet structure. In the south, rice and pork are almost absolute staple foods, while in the north, most people are used to eating pasta and beef and mutton, which have different effects on bone growth and body shape.

However, these are not absolute. In recent years, the average height of Japanese teenagers has increased rapidly. According to statistics, the average height of Japanese teenagers has surpassed that of our country, which is very unpleasant ~

Viewpoint 1:

Mainly because of the climate and diet. Southerners have no less hair than northerners.

Viewpoint 2:

1。 The Qin and Han Dynasties were the first stage: in 36 BC, Gan Yanshou, the protector of the Western Regions in the Western Han Dynasty, and Chen Tang, the deputy commander, led 40,000 soldiers to the Western Xiongnu to Zhi Zhi City (Zhanbule City, Kazakhstan) ... On the way to the war, the soldiers of the Western Han Dynasty noticed that Khan had a very strange mercenary, tall, with eyes and nose, red hair and burly figure, who lined up in a phalanx in the battle, just like the Roman imperial army at the same time. In the Battle of Tancheng, the Han army won a total victory, beheading 15 18 people, taking 145 people alive and surrendering 1000 people. Gan Yanshou and monk Chen took the prisoners back to China. And put these Romans into the army and established a county called "Li Gan" in Gansu. A passage in the Book of the Later Han Dynasty says: "Li Gan County was established in the early Han Dynasty, with the name of the country as the county." "Li Gan" was exactly what China called Rome at that time. Since it is a "named county", this new county must be set up to settle the Romans. This Roman army became the first European nation to be assimilated.

2。 The Wei and Jin Dynasties are the second stage: The Book of Jin Shi Shuo Xin Yu records East Jin Mingdi as "yellow beard" and "yellow head", which is a typical Caucasian ethnic feature. It is also called "Xianbei slave", and its mother is "Yan Dynasty" (now Beijing area), saying that it looks similar to her mother. It can be seen that the Xianbei tribes at that time, and even the natives in North China, all contained a large number of Caucasian ethnic components.

In the Western Jin Dynasty, the nobles of the Western Jin Dynasty kidnapped local women from the Liaohe River basin to buy wives and concubines, mainly in pursuit of strangeness, because local women looked different from the Han nationality, with yellow hair and blue eyes, and then Mohe nationality appeared. Logically, it can be concluded that a small number of ancient Finns may have gone to Northeast Asia. As we all know, Finns are Nordic, tall and powerful, and they are Xianbei (White Xiongnu) in Northeast China.

3。 The period of Sui, Tang and Five Dynasties is the third stage: The History of the New Five Dynasties, The Appendices of Siyi and the Biography of Shiwei in the Old Tang Book and the New Tang Book all recorded "Huangtou Shiwei", also known as "Huangtou Shiwei", and Shiwei was the predecessor of Mongolian ministries.

The Book of the New Tang Dynasty (volume 1 10) and Biography of Li Duozuo recorded that "Li Duozuo was the first chieftain of the clan, with the title of' Huang Toushuai', and later entered China, with a long pedigree", indicating that there were also blond tribes in the Tang Dynasty.

During this period, nomadic people in the north further intermarried with Aryans in Europe, forming a brand-new ethnic composition, which laid the foundation stone for the rise of Khitan, Nuzhen and Mongolia in the future. Zhang Ji, a poet in the Tang Dynasty, recorded in his poem Yongjiaxing that "Huangtou Xianbei entered Luo" was evidenced by poetry.

4。 The Liao, Jin and Yuan Dynasties were the fourth stage: A Jurchen with yellow hair, yellow temples and green eyes was recorded in The Three Dynasties North Alliance, which was called "Jurchen with Yellow Head"; The story of Song and Mo is called "yellow hair and green eyes" in the article "Yellow-headed Jurchen". The article "Huang-headed Nuzhen" in the Records of the Khitan Nation and Miscellanies of Guo Fan records that her facial features are "yellow hair and green eyes", which is obviously a Caucasian ethnic feature. This proves that people of all ethnic groups in Northeast China have Caucasian genes more or less. Genghis Khan and his father should have blue eyes soon, and their family name "Boldin" means "blue eyes".

5。 At the end of Yuan Dynasty and the beginning of Ming Dynasty, it was the fifth stage: Mongolia conquered the Assyrians in the Caucasus during its Western Expedition. Azuth originally believed in the Orthodox Church. They are tall, fair-skinned and have blue or green eyes. Later, they joined the army, entered the Central Plains, and formed the Azzos Army, known as "Green Eye Hui". Semu people and Mongolian ancients were nobles at that time, and Han people with low status had no right to intermarry with nobles. Later, Yuan Shizu Kublai Khan ordered the garrison troops to "organize people everywhere, make up people, etc.". Most of these troops were stationed in the north, so the descendants of these early European immigrants were mainly assimilated by Mongols, Xixia people and Jurchen people, forming future northerners.

6。 The Qing Dynasty and the Republic of China were the sixth stage: Tsarist Russia carried out the policy of "Russianization of Borders" in Siberia and the Far East, which led to sporadic immigrants from as many as 2 1 countries moving into Siberia and the Far East. Most of these immigrants are Russians, followed by Ukrainians, Tatars, Finns, Poles and Caucasians. Since September 1689, the Sino-Russian border with the Ergon River was formed after China and Russia signed the Treaty of Nebuchadnezzar. Article 5 of the treaty stipulates that "all Russians in our country and all Russians in our country remain intact and need not be repatriated." This has resulted in the historical phenomenon that there are Russian residents in China and Russian residents in China.

At the end of 19, with the rise of gold mining on both sides of the Ergon River, many mainlanders in Shandong, Hebei and other provinces were recruited as gold miners by Russian capitalists. 1900 During the construction of the Middle East Railway, more China laborers were attracted to the mainland. Some of them later flowed into Russian border areas to engage in gold mining, and some worked as employees for Russian government gentry and rich peasants. Because most of these China laborers are single young people, they live among Russians, have been friends with Russian girls for a long time, and then fall in love and get married, forming a family of mixed nationalities, and have also given birth to countless children.

Conclusion: People of all ethnic groups in the north have been intermarriing with all ethnic groups in Europe for thousands of years, so they inherited the tall physique of Caucasian people from the genetic point of view. Similarly, most people with type A blood in the north and type B blood in the south have also proved this point.