Milk may have fuelled a growth spurt in ancient Europeans• arclein
To measure the impact of lactose tolerance on the size of humans, Jay Stock at Western University in Ontario, Canada, and his colleagues collated data on 3507 skeletons from 366 archaeological sites in seven regions ?" the Levant, southern, central, and northern Europe, the Nile Valley, South Asia and China ?" going back to 30,000 years ago. The researchers used skeletal measurements to estimate the specimens' heights and the size of weight-bearing joints to estimate their weights.