Comments by "Matt Matt" (@CENTRIX4) on "Celtic DNA: What’s the Genetics of Celtic Peoples u0026 How Common is Red Hair?" video.

Lactose Tolerance And The Indo Europeans The milk the R1a M417 Y Haplotype initially drank had been Mares milk as in Horses milk not cows milk. Horses milk is 40% Lactose. Thus if the people had been able to digest the Lactose content of Horses milk being 40% it would be a huge biological advantage over people who were unable to digest the Lactose in Horses milk. This would be especially important for pregnant women and breast feeding women and young children as the additional energy provided by the ability to digest the Lactose in Hoses milk would be a vast advantage in the winter and the cold. The ability to digest the Lactose in Horses milk would be the difference between life and death in the winter. Thus when the Lactose tolerance mutation appeared it proliferated very very quickly within the Indo European population as it bestowed such a vast biological survival advantage. Is the real reason the Indo Europeans became dominant so quickly over such a vast geographic region in the Northern Hemisphere due to their ability to digest the Lactose content of Horses milk being 40%? Breeding cows for milk did not take place for a huge length of time after the Lactose Tolerance mutation first appeared. Horses Milk --- Gorses are a lot more resilient and tougher than cows thus can survive in more extreme conditions being prolonged cold however Horses only produce a very limited amount of milk per animal relative to cows. Thus a grossly limited milk supply from Horses and of this limited milk supply 40% is Lactose the ability to digest this Lactose is a vast biological survival advantage. This explains why the Lactose Tolerance mutation proliferated very quickly within the Indo European population. Dominant mutations are from the very extreme limit of human survival. The extreme cold and long winters and short growing season for crops had bee the limit of survival for modern man and from this extreme environment arose the Lactose Tolerance mutation. Comments welcome ====== Lactose Tolerance ---- Atlantic Climate Zone Almost every single person within the Atlantic Climate Zone carries the mutation for Lactose Tolerance. Dairy faming encompassing milk and butter and cheese is a very significant part of the diet within the Atlantic Climate Zone. Thus it makes sense that within the Atlantic Climate Zone Lactose Tolerance would proliferate to the entire population and this is what we witness. A combination of the Climate within the Atlantic Climate Zone and the mass migration of the M417 Lactose Tolerance mutation also gives this population an advantage when emigrating as under extreme stress the ability to digest Lactose will confer a survival advantage on this population. Witness the scale of the Irish diaspora Scottish diaspora and Welsh diaspora around the world and the Lactose Tolerance mutation had been essential in allowing these people to survive and prosper when they emigrated to different parts of the world. =======
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