The first of about two dozen preseason practices for Arizona was scheduled to end around 12:15 p.m. PT on Wednesday but ended ...

What is the force of a hit to the head your kid sees on the field? How are helmets tested to absorb them? The Virginia Tech Helmet Lab explains.

Known as the boxer’s disease, it is linked to repeated head trauma and the loss of neurons. "Study my brain, please. I'm sorry." ...