Skeletons Spill 37,000 Years of Disease Tea

Imagine scientists using ancient bones and teeth to map out 37,000 years of human infections! Turns out, our ancestors were basically living with bugs nonstop—from oral bacteria in Ice Age Siberia to plague DNA in Viking skulls. Farming and hanging out with animals brought a wave of new diseases, and some of the genes that helped us survive back then now mess with our immune systems today. Our DNA is basically a diary of every nasty bug we’ve ever met! #Science #AncientDNA #HumanHistory