Stoobalou (1774024) writes "Researchers at the the National University of Cuyo, in Mendoza, Argentina, looked at that strange breed — men who wear mobile phones on their hip. They discovered evidence to suggest that the proximity of the mobile phone caused a reduction in bone mineral content (BMC) and bone mineral density (BMD) in the men who wore the phones over a 12-month period, compared to a control group that didn't." Link to Original Source
The IQ of the group is the lowest IQ of a member of the group divided
by the number of people in the group.