Christian Franck

2

Bjorn Borgen Professor of Mechanical Engineering and Director of the Center for Traumatic Brain Injury, University of Wisconsin-Madison

Helmets are essential gear when skateboarding. Daniel Milchev/The Image Bank via Getty Images

May 4, 2026

Christian Franck, University of Wisconsin-Madison

An expert in traumatic brain injuries explains why you need to protect your noggin.

Low-level blasts can cause physical changes in the brain. Libkos/AP Photo

February 28, 2024

Alice Lux Fawzi, University of Wisconsin-Madison and Christian Franck, University of Wisconsin-Madison

The people manning the guns are also at risk of injury from the force of the weapon.