Why Don't Helmets Protect Against Concussions?
Helmets are designed to protect the skull from impact, but they don't always prevent concussions. This is because concussions are caused by rotational forces that can damage the brain even if the skull is not fractured.
The brain is a delicate organ that is suspended in cerebrospinal fluid. When the head is hit, the brain can rotate inside the skull, causing damage to the brain cells and blood vessels. This can lead to a concussion, which can cause a range of symptoms, including headache, nausea, vomiting, dizziness, and confusion.
Helmets can help to reduce the risk of concussions by absorbing some of the impact force and preventing the head from rotating as much. However, they cannot completely eliminate the risk of concussions, especially if the impact is severe.
Related Questions
- What are the symptoms of a concussion? Headache, nausea, vomiting, dizziness, confusion
- How can I prevent concussions? Wear a helmet, avoid risky activities, strengthen neck muscles
- Who is most at risk for concussions? Contact sport athletes, children, elderly people
- What should I do if I think I have a concussion? Rest, see a doctor, avoid strenuous activity
- How long does it take to recover from a concussion? Varies, but typically 1-4 weeks
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