What does an improperly fitted helmet risk?

An improperly fitted helmet significantly compromises its effectiveness in protecting the wearer during impacts. When a helmet does not fit correctly, it may not stay in place during a fall or collision. This can result in the helmet moving away from areas that need protection or failing to absorb impact forces properly.

For instance, if the helmet is too loose, it may slide off or shift during an accident, leaving parts of the head exposed and vulnerable to injury, which defeats the purpose of the helmet. Conversely, if it is too tight, it can create discomfort and distract the wearer, potentially leading to lapses in concentration while engaged in activities where safety is critical.

Thus, ensuring that a helmet fits properly is crucial for maximizing the level of protection it provides in the event of an accident. This aspect highlights the importance of fitting helmets correctly according to the manufacturer's guidelines to ensure that they provide the intended level of safety.