![SBS World News Radio show](https://d3dthqtvwic6y7.cloudfront.net/podcast-covers/000/001/856/small/sbs-world-view.jpg)
Summary: A new study in the United States has found that head impacts in sport can cause noticeable brain changes, even without signs of a concussion.
Summary: A new study in the United States has found that head impacts in sport can cause noticeable brain changes, even without signs of a concussion.