How Helmet Protect Head Injury

A helmet aims to reduce the risk of serious head and brain injuries by reducing the impact of a force or collision to the head. A helmet works in three ways:

1. It reduces the deceleration of the skull, and hence the brain movement, by managing the impact. The soft material incorporated in the helmet absorbs some of the impact and therefore the head comes to a halt more slowly. This means that the brain does not hit the skull with great force.
2. It spreads the forces of the impact over a greater surface area so that they are not concentrated on particular areas of the skull.
3. It prevents direct contact between the skull and the impacting object by acting as a mechanical barrier between the head and the object.