Headbanging

From ABC News in Australia:

In a study published in the British Medical Journal this week, two University of New South Wales (UNSW) researchers concluded that head-banging to a typical heavy metal tempo could cause mild traumatic brain injury or concussion, and neck injury, particularly as the tempo of the music and angle of movement increased.

"Clearly it's a serious issue," says Associate Professor Andrew McIntosh, co-author and professor of biomechanics at UNSW.

"If you observe people after concerts they clearly look dazed, confused and incoherent, so something must be going on and we wanted to look into it."

Well, now I guess we all know why Jason Newstead is such an idiot. No word on why he's such an asshole though.