I wonder how much was paid for this study??
A doctor has issued a report in the British Medical Journal stating that headbanging can be hazardous to your health. Dr. Andrew McIntosh, a biomedical and injury expert at the University of New South Wales, warned in his report, "We identified a definite risk of mild traumatic brain injury from headbanging. We would suggest a proper public health warning, as for smoking." McIntosh suggests that fans wear neck braces when headbanging to avoid injuring themselves. (NME.com)
http://www.therockradio.com/2008/12/roc ... -hits.html