Wearing helmets can be traced back to ancient times. Primitive people used coconut shells, big tortoise shells, etc. as equipment to hunt wild animals and fight to protect their heads and reduce damage. According to US military statistics, steel helmets protected the lives of at least 70000 US soldiers in the Second World War. Safety protection is a basic and important function of helmet. In today's society, there is no shortage of scenes that need to wear helmets - riding electric bikes and motorcycles.

In the new national standard for electric vehicles implemented in April this year, it is recommended to wear helmets when riding, which is a call for public safety. The new traffic regulations in various regions also stipulate that riding an electric vehicle without a helmet will be punished. Behind the strict management of the traffic police, it is an important warning for personal safety.

According to the analysis of a large number of data, most cyclists fall down with their shoulders first, followed by their heads, so it is important to have head protection. Wearing helmets can absorb most of the impact force and prevent 85% of head injuries. The head injury probability without helmets is 2.8 times that of wearing helmets.