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A motorcycle helmet is a type of helmet used by motorcycle riders.
Such helmets have an open cutout in a band across the eyes and nose, and often include a clear or tinted transparent plastic face shield, known as a visor, that generally swivels up and down to allow access to the face.
Many full face helmets include vents to increase the airflow to the rider.
Swerving to avoid them, Lawrence lost control and was thrown over the handlebars.Cairns' research led to the increased use of crash helmets by both military and civilian motorcyclists.There are five basic types of helmets intended for motorcycling, and others not intended for motorcycling but which are used by some riders.The review concluded that helmets reduce the risk of head injury by around 69% and death by around 42%.Although it was once speculated that wearing a motorcycle helmet increased neck and spinal injuries in a crash, recent evidence has shown the opposite to be the case, that helmets protect against cervical spine injury, and that an often-cited small study dating to the mid-1980s, "used flawed statistical reasoning".
The primary goal of a motorcycle helmet is motorcycle safety – to protect the rider's head during impact, thus preventing or reducing head injury and saving the rider's life.