Scientists from Imperial College London conducted the most extensive in the history of the study of human growth. The researchers analyzed changes that occurred over the last century. The highest on the planet to date were Dutch men and Latvian women.
The study is published July 26 in the journal eLife. The scientists reexamined the data 1472 other works measurement growth of over 18.6 million people. Therefore, the researchers calculated the average height of people from two hundred countries, born between 1896 and 1996 (i.e. has attained 18 years from 1914 to 2014).
The study showed that Dutch men are the highest on the planet (the average height 182,5 cm), according to Reuters. The biggest growth have Latvian women (average height 170 cm).
In this case the lowest in the world in 2014 were men from East Timor (a country in South-East Asia) with an average height of 160 cm Women from Guatemala by this time was very small in stature (average height – 149 cm).
The largest increases in height occurred over the last century in women in South Korea and men in Iran, which were higher by 20.2 cm and 16.5 cm, respectively. In some countries of Africa South of the Sahara and in South Asia in a century, the growth of adults has changed slightly.
Height of men and women in the UK over the century increased by about 11 see the Growth of men and women in the United States for a century has increased by 6 cm and 5 cm Chinese men and women were higher by approximately 11 cm and 10 cm.
The difference between the highest and lowest representatives of different countries in 2014 amounted to about 23 cm for men. In 1914, the gap was only 4 cm Difference in height among women after age practically did not change and remained equal to about 20 cm.
The growth gap between men and women remains almost unchanged for a century, averaging about 11 cm in 1914 and 12 cm in 2014.
Australian men in 2014 was the only non-European nation that ranked in the top 25 tallest men in the world. Among the countries with the highest male to 2014 was included (in parentheses position in the ranking in 1914): 1. Netherlands (12th place); 2. Belgium (33rd place); 3. Estonia (4th place); 4. Latvia (13th place); 5. Denmark (9th place); 6. Bosnia and Herzegovina (19th place); 7. Croatia (22nd place); 8. Serbia (30-th); 9. Iceland (6th place); 10. Czech Republic (24th place). Among the countries with the highest women in 2014 were: 1. Latvia (28th place); 2. Netherlands (38); 3. Estonia (16); 4. Czech Republic (69th place); 5. Serbia (93rd place) 6. Slovakia (26th place) 7. Denmark (11th place) 8. Lithuania (41st place) 9. Belarus (42nd place) 10. Ukraine (43rd place).
The growth is strongly influenced by nutrition and environment. In some cases the value may have genetic factors. Children and Teens who eat better and live in better conditions tend to be higher. Studies show that the health and nutrition of the mother during pregnancy may also play a role in how high will her children.
In addition, some studies have shown that tall people usually live longer, get a better education and earn more. However, high growth may increase some health risks: for example, ovarian cancer and prostate cancer.
Professor of public health at Imperial College London Majid Ezzati believes that the study of growth gives a “picture of the state of health of the peoples in the past century.” According to him, the results highlight the need to consider the nutrition of children and adolescents and their environment globally”.