Bicycle helmets can reduce the risk of deaths amongst cyclists. 75% of those who die each year do so from head injuries. 88% of those suffering brain injuries could be avoided by wearing a helmet.
Helmets work to absorb the force, which protects the head, which in turn protects your brain.
They come in various prices colours and makes. These are manufactured with a liner made of polymer foam which is the major impact absorbing element with the ability of being omnidirectional. Polymer foams are also chosen because they are made of expanded polystyrene (EPS) which is easily made.
In the UK it is suggested within the Highway Code that a helmet; conforming to current regulations, being the correct size and securely fastened; be worn whilst cycling. There is no British law that compels cyclists to do this. Cyclists should make their own decisions about whether or not to wear helmets.