Headbanging is a movement that consists of moving your head back-and-forth, although there are many different types of headbanging. Headbanging is known to cause whiplash, and neck problems.
Examples for headbanging include:
Chest-To-Back
The Windmill
Head Bob
Body Bang
Headbangers are generally seen as people who listen to metal, but other genres including punk, and rock also headbang. .
