Why traumatic brain injuries raise the risk of a second, worse hit
Slowed reaction times, dizziness and double vision confound a quick-moving quarterback
![Tua Tagovailoa, wearing a teal jersey with the number 1, tries to throw a football amid a tackle](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2022/10/100622_ls_concussion_feat.jpg?fit=1030%2C580&ssl=1)
When he got sacked on September 29, Miami Dolphins quarterback Tua Tagovailoa (teal uniform, No. 1) sustained a head-rattling concussion. His injuries have reignited discussions of brain safety for professional football players.
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