Tight ends Jesper Horsted #80 and Nick Bowers #82 of the Las Vegas Raiders wear Guardian Caps as they practice during training camp at the Las Vegas Raiders Headquarters/Intermountain Healthcare Performance Center on August 01, 2022 in Henderson, Nevada.
Mandatory Credit:	Ethan Miller/Getty Images North America/Getty Images via CNN Newsource

Tight ends Jesper Horsted #80 and Nick Bowers #82 of the Las Vegas Raiders wear Guardian Caps as they practice during training camp at the Las Vegas Raiders Headquarters/Intermountain Healthcare Performance Center on August 01, 2022 in Henderson, Nevada.
Mandatory Credit: Ethan Miller/Getty Images North America/Getty Images via CNN Newsource

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The NFL embraced soft-shell helmet covers to protect players from concussions. Here’s what the science says about them

Crack! The sound of football helmets colliding on the field is an audible sign that fall is just around the corner. But that sound also comes with a darker side. Mounting scientific evidence shows that repeated hits to the head — even if they don’t result in concussions — may cause lasting damage in the brain and perhaps progressive neurodegeneration called chronic traumatic encephalopathy, or CTE.