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How does a concussion affect the brain?

A concussion is a bruise to the brain. When the head shifts too suddenly or when someone experiences a blow to the brain, the brain moves through cerebral fluid and can hit the inside of the skull.

A concussion can have many impacts. It can knock a person unconscious. It also can cause confusion, memory loss, ringing in the ears, headaches and dizziness. It also can impair a person's ability to speak and think clearly.

A concussion affects how the brain works and can change the way people think and feel. A concussion can't be seen like bruises or scrapes on the outside of the body. But whenever people hurt their head, there is a small chance of bleeding in the brain, which can be very dangerous.

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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.