b'or jolt to the head. A concussion can also occur from a blow to the body that causes the head to move rapidly back and forth. They can range from mild to severe and can disrupt the way the brain normally works. Even a ding or a bump on the head can be serious and result in a long-term or lifelong disability. No two brain injuries are alike; symptoms will vary by individual and can include changes in cognitive, physical and emotional functioning.Because mild TBI can be hard to detect, its important to know something about the constellation of symptoms to look for.They may include: Headache Nausea or vomiting Balance problems or dizzinessDouble or fuzzy vision Sensitivity to light or noise Feeling groggy, foggy or sluggish Concentration or memory problems Confusion Irritability Sadness Nervousness or anxiety Sleeping more or less than usual Trouble falling asleep Mental Health Concerns183'