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There is only a small window of opportunity to correct the infantâs skull. As the rate of skull growth is faster in the early ages, helmet therapy is most effective between the ages of 3 to 7 months. However, helmets are still effective until the infant is 12 months old.
A male competitive cyclist wearing a bicycling helmet. A helmet is a form of protective gear worn to protect the head from injuries. More specifically, a helmet aids the skull in protecting the human brain. Ceremonial or symbolic helmets (e.g. UK policeman's helmet) without protective function are sometimes used. The oldest known use of helmets was by Assyrian soldiers in 900 BC, who wore thick leather or bronze helmets to protect the head from blunt object and sword blows and arrow strikes in combat.