This week on the podcast: How humans adapted to digest lactose — after thousands of years of milk drinking
Your browser does not support the audio element.Humans have been drinking milk for thousands of years, but it seems that they were doing so long before the ability to digest it became prevalent.
Then, around 2,000 years ago, this ability became common in Europe, presenting a mystery to researchers — why then? Now, by analysing health data, ancient DNA and fats residues from thousands of ancient pots, scientists have worked out what caused this trait to suddenly spread throughout Europe.
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