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Concussion is a temporary injury to the brain that affects how the brain functions. It is often caused by a bump or blow to the head. It can also be caused by knocks to other parts of the body that jolt the head such as a sports tackle. Most concussions occur without loss of consciousness (being “knocked out”).
Signs and symptoms of a concussion
- Tiredness and weakness
- Changes in mood or behaviour
- Headaches
- Poor concentration
- Nausea
- Memory loss
- Dizziness
- Changes to sleep
- Confusion
- Difficulties processing information
- Vision changes
- Difficulties at school
Symptoms usually appear immediately after the injury or within the first 24 to 48 hours. Most children recover completely and symptoms get better within a few days or weeks. Some children may develop post-concussion syndrome and take longer to get better.