Definition: protective gear worn on the head to protect against injury.

1. Why should I wear a helmet?
Answer: A helmet is designed to provide protection to your head during an impact. Wearing a helmet can reduce the risk of head injury or even save your life in case of an accident.

2. What are the types of helmets available?
Answer: The different types of helmets are bike helmets, motorcycle helmets, snowboard helmets, football helmets, and construction helmets.

3. How do I choose the right size of helmet?
Answer: First, you need to measure the circumference of your head using a tape measure. Then compare the measurements against the manufacturer’s size chart to find the correct size.

4. How do I maintain a helmet?
Answer: You can maintain your helmet by inspecting it regularly for signs of damage and replacing it if it is damaged. You can also clean it with mild soap and water, avoid using harsh chemicals or solvents that can damage the helmet.

5. When do I need to replace my helmet?
Answer: You should replace your helmet if it is damaged, cracked, or has been involved in an accident. Manufacturers also recommend replacing helmets every 3-5 years due to normal wear and tear.