A Bronze Age man buried in a kurgan about 5,300 years ago had a grape-sized stone

A Bronze Age man buried in a kurgan about 5,300 years ago had a grape-sized stone in his kidney. This discovery, along with signs of rigorous activity and healed fractures in his skeletal remains, provides insights into the health struggles of early humans. The stone may imply chronic infection, causing severe discomfort in his later years.