Trauma to the brain occurs as a result of an impact, whether it’s from a fall or crash, it doesn’t matter. A good helmet will not only protect you from such impact, but absorb and disperse shock and energy from directly impacting your head and brain. The helmet is able to do that thanks to its hard, rigid outer shell, crushing layer and interior padding. According to the National Highway Traffic Safety Administration, motorcycle helmets reduce the risk of death by 39% and the risk of head injury by 69%.