Medical Xpress on MSN: Mini-brain model reveals how mild head hits trigger neurodegenerative cascades Bleeding occurs when trauma damages a blood vessel. When that trauma involves your head—whether the scalp, skull, or brain—it’s considered a head injury. These head injuries range in severity from a ...

Understanding the Context

Head injuries can transform from seemingly minor bumps into life-threatening medical emergencies within minutes or hours. The brain sits protected within the skull, but when trauma occurs, the ...