Comments by "Matt Matt" (@CENTRIX4) on "Why You DON’T Descend From All Your Ancestors…" video.

  1. Genetic Ancestry And Epigenetics People of a quarrying background have phenomenal physical strength however they tend not to be very academic and as they grow older have an acute problem with obesity and diabetes. This correlates with their ancestors working in quarries for generations potentially going back thousands of years doing backbreaking manual work on a near starvation diet. People of a coal mining background tend to be very athletic with a considerable amount of muscle mass and in these regions rugby is the dominant sport. The physical characteristics for coal mining by hand and rugby overlap. For a long time carts full of coal were pushed down the tunnels by hand and the surface of the floor had been very uneven thus very tough aerobic manual work and this type of physique overlaps with the optimum physique for rugby. Deep mines have only existed since the miners lamp had been developed in 1815. The first miner's safety lamp was developed in 1815 by Sir Humphry Davy, an English scientist and inventor. People who dug the canals and docks by hand. The canals and docks had to be dug by hand as the rock had to stay watertight and explosives would crack the rock thus the water would drain away. There is vast differences in the density of sandstone rock. The sandstone rock had been dug by hand using steel bars and/or steel chisels and ump hammers. This type f work favours those with very strong hands and arms and not having strength in their legs thus a boxing physique. The regions where they recruited people to di the canals their is a culture of boxing with very little rugby if any at all. When I have visited Yorkshire I have always been aware there is a very strong historic culture of rugby but almost zero culture of boxing especially in the rural areas where the mines were located. The type of physique that enabled someone to work in the historic industries of Quarrying and Coal Mining and Digging Canals and Docks before machines were used were very very different. These different physiques for Quarrying, coal mining and navies to dig docks and canals by hand correlates with different sports that are dominate in these regions. This is there the potential for epigenetics to supersede other variables for dominant genetic characteristics depending upon the major industry of the region? Northern Ireland the regions where they recruited people to dig the canals and docks by hand there is a very strong culture of boxing. Above is personal observations and personal opinions however the evidence to support the above is overwhelming. The significance on extreme environmental variables upon the genetics of a region be it Quarrying or Coal Mines or a history of recruiting navies to dig canals or docks. A certain physique and thus specific genetic alleles will dominate and proliferate in a region depending upon the principle economic industry of that region as discussed above. Comments welcome
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