Saturday, February 4, 2017
Human Height Genetics Revealed
Genetic Investigation of Anthropometric Traits conducted an international study of 700,000 people revealed 83 genetic variations effect height. The study used a technology called ExomeChip to study 200,000 gene variants examining bone cartilage, and growth hormone production. Of these, STC2 was found to have DNA changes that control height. Activation of STC2 was found to increase height by 1-2cm and this sheds light on how growth works. Scientists hope to use this to predict growth patterns of diseases such as diabetes and schizophrenia to be able to provide precision treatment.
While this may answer the genetic reasons for height gain and growth, the STC2 and other growth factors can also be activated and extended due to environmental influence which can either activate or hinder growth. I think diet, exercise, and nutrition is a severely overlooked factor in human height/growth. In eastern Asian for example, the average height has grown significantly over the years most likely due to the increased availability of nutritious food and modern lifestyle.