New research concluded that concussions are associated with preexisting mental health problems, such as depression or PTSD. If you or someone that you know has suffered from a concussion, be sure to allow the brain to FULLY recover before returning to physical activity.
Source: Stein MB, Jain S, Giacino JT, et al. Risk of Posttraumatic Stress Disorder and Major Depression in Civilian Patients After Mild Traumatic Brain Injury: A TRACK-TBI Study. JAMA Psychiatry. Published online January 30, 2019. doi:10.1001/jamapsychiatry.2018.