People who suffer a head injury should rest soon after they are hurt. Doctors say rest is important in helping the brain to heal after the injury.

头部受伤者在伤后应该立即休息。医生表示，休息对头部受伤后的愈合非常重要。

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The NFL implemented preseason baseline concussion testing that players must meet if they suffer a head injury during the season.

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Headway is a charity which campaigns on behalf of people who suffer head injury.

BBC: Brain operation