How the Black Death Changed Our DNA

The Black Death killed so many people in medieval Europe that villages were completely abandoned

and reclaimed by forests. But here's what they don't tell you.

The plague was so devastating it actually changed human DNA forever. Survivors carried

specific genes that helped them resist the infection, and they passed those genes down

through generations. Except there's a dark twist. Those same genetic mutations that saved

people from the plague now make their descendants way more likely to develop autoimmune

diseases like Crohn's, arthritis, and lupus today. The plague literally rewired our biology,

and we're still living with the consequences 700 years later. Your immune system