As reported by Yahoo!News…
Loud Music Can Cause Lung Collapse
Reporting in the medical journal Thorax, they describe the cases of four young men who suffered a lung collapse — technically called pneumothorax –that appeared to be triggered by loud music. Three of the men were at a concert or club when the pneumothorax occurred, while the fourth was in his car, which was outfitted with a 1,000-watt bass box because he “liked to listen to loud music.”