A cyclist is relatively susceptible to accidents, most of which occur without the involvement of another party. The most common parts of the body receiving injuries include the head, the clavicular and the chest region as well as the upper limbs. It is common for a cyclist upon falling to suffer injuries of several parts of the body. While the use of a cyclist's helmet has clearly increased in the course of the years, it is still being used by less than half of the cyclists. During the past decade, 20 to 30 cyclists have died in bicycle accidents in Finland. The most common cause leading to a cyclist's death is brain injury.