Height is important. If parents had a choice they would want their children to have a height advantage. The reasons are obvious, a bigger body means confidence, higher wages, and more attention.

In many countries height is a predictor of social economic background. Malnourished individuals do not grow taller in certain countries and only the well-to-do can afford to obtain height through a plentiful diet that includes lots of protein.

Other countries do not put an emphasis on height, until now. For example, china has been a country that associated beauty with small petite things, including feet and females. Until recently, many chinese women were forced to wear rediculously small foot containers that constricted growth. Also, the asian population has one of the smallest average height ratio's compared to western europeans.

Today China is deeply involved in training their youth with sports such as basketball in order to increase their national average. Germany has stressed physical prowess as well as mental and thus their national average has been higher than other countries.

Also, their has been a correlation between a countries wealth and height. Highly successful countries have some of the tallest human beings. There are many reasons why they grow tall. One is the abundance highly nutrative food containing protein. Another is mental health. Height and mental health are well correlated.

Studies conducted on basketball athletes have proven time and again that height spurts occur during positive mental states that have minimal stress levels. For example, studies have proven that small basketball athletes came from stressful backgrounds or had psycological barriers that prevented them from increasing height. In contrast, the tallest athletes grew up in positive environments with minimal stress.

Other studies have shown individuals obtaining sudden growth spurts when they are removed from their stressful environments into positive stress free environments. The height of these individuals suddenly changes when they no longer have a stress barrier. Height studies on females have proven that athletic pre-teen girls extend their youth and increase height at a later age due to their physical activity. These girls increase testosterone levels while they decrease estrogen levels and as a results their height average is greater.