TUESDAY, Aug. 22, 2017 (HealthDay News) -- Playing contact sports like football or ice hockey can alter the structure and function of the brain, Canadian researchers report. Brain scans showed that these changes were particularly pronounced in sports that have the greatest risk of body contact. "There is growing concern about the risk of collisions in sport. However, most of the research has focused on retired professional athletes with decades of exposure to head impacts," said lead researcher Nathan Churchill. He's a post-doctoral fellow in the neuroscience research program at St. … [Read more...] about More Evidence Contact Sports Can Affect the Brain A