Recognize these 5 dangerous head injury warning signs that require immediate medical attention. Learn when brain trauma becomes a medical emergency.

Brain injuries are extremely serious and require evaluation by a provider experienced in assessing head injuries. This typically involves a brain CT scan and a formal neurological exam.

They’ve detected photons that traveled from one side of an adult human head to the other—an optical journey spanning over 15 centimeters and requiring passage through skull, brain, and bone.