A blood test may help predict recovery from traumatic brain injury
High levels of a key blood protein point to brain shrinkage and damage to message-sending axons
![brain scan](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2021/09/092921_jr_tmi_feat.jpg?fit=1030%2C580&ssl=1)
The fatty material surrounding fibers that send signals between neurons degenerates after a traumatic brain injury. A new study pinpoints a blood biomarker that can predict this damage.
Living Art Enterprises/Science Source