Why do people wear safety helmets?

People wear safety helmets to protect their heads from potential injuries caused by impacts, falls, or collisions in various activities, such as construction, cycling, and sports. Helmets are designed to absorb shock and reduce the risk of traumatic brain injuries. They also provide visibility and can be fitted with additional safety features, such as reflective materials and ventilation. Overall, wearing a helmet significantly enhances personal safety in hazardous environments.