Studies show that following a concussion, the brain injury will fully heal within 7-10 days in 85-90% of cases. However, in 10-15% of cases concussion will cause longer lasting symptoms. 'Post-Concussion Syndrome' is diagnosed when concussion related symptoms last more than 3-4 weeks. The etiology of the Post-Concussion syndrome phenomena is not well understood but inappropriate management of the initial concussion is a risk-factor for development.

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Risks for Post-Concussion Syndrome include:

• History of previous concussion

• Multiple concussion within a short time period

• Pre-existing depression and anxiety

• Presence of life and family stressors

• Improper management of initial concussion and not allowing full brain injury recovery

• Younger children and adolescents have been shown to require a longer time to recover