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Human height stature is the distance from the bottom of the feet to the top of the head in a human body, standing erect. It is measured using a stadiometer,[1] usually in centimetres when using the metric system,[2][3] or feet and inches when using the imperial system.[4][5]
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A particular genetic profile in men called Y haplotype I-M170 is correlated with height. Ecological data shows that as the frequency of this genetic profile increases in the population, the average male height in a country also increases.
When populations share genetic background and environmental factors, average height is frequently characteristic within the group. Exceptional height variation (around 20% deviation from average) within such a population is sometimes due to gigantism or dwarfism, which are medical conditions caused by specific genes or endocrineabnormalities.[6]
The development of human height can serve as an indicator of two key welfare components, namely nutritional quality and health.[7] In regions of poverty or warfare, environmental factors like chronic malnutrition during childhood or adolescence may result in delayed growth and/or marked reductions in adult stature even without the presence of any of these medical conditions.
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