Teams at the University of Exeter and The University of Oxford have investigated the connection between concussions and brain function in later life. They found that “participants who reported three episodes of even mild concussion throughout their lives had significantly worse attention and ability to complete complex tasks. Those who had four or more mild concussion episodes also showed worsened processing speed and working memory. Each additional reported concussion was linked to progressively worse cognitive function.” Additionally, even after suffering just one moderate-to-severe concussion, they found “worsened attention, completion of complex tasks and processing speed capacity.” This research is important in understanding how brain trauma from concussions could be linked to dementia risk and should serve as a warning to reduce risk of head injury.