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Did we know this about lactose intolerance?


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It's genetic-older genetics could not digest milk but newer Human 2.0 types developed the ability to digest milk past infanthood. :D

 

I'm watching a Nova documentary on The Ice Man, the prehistoric man whose body was found in a glacier in Italy, and they say he was lactose intolerant and how the genetics worked on it.

 

It's a super interesting show-my kids have been fascinated by it too.

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Yep. Actually, watching the spread of it is very interesting. A random mutation usually doesn't spread that widely unless it conveys some survival benefit (like sickle-cell in Africa actually protects against malaria in the heterozygous condition -- enough benefit that there's a strong selection for it genetically.)

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Oh brother. tough crowd. :glare: It was a joke, not a commentary on people's genetics. Sometimes this board is no fun at all.

 

And actually, yeah, according to the show, the lactose intolerant genes are an older version. sorry.

 

Whoa! I get that you were kidding. So was I!

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