How much force per square inch for a concussion?

The force required to cause a concussion can vary widely due to individual factors, but studies suggest that a force of around 60 to 95 g (gravitational force) applied to the head can lead to a concussion. In terms of force per square inch, this translates to approximately 1,500 to 2,500 pounds per square inch (psi) depending on the area of impact and the specific circumstances of the injury. However, it's important to note that concussions are complex injuries influenced not just by force, but also by factors like the direction of impact and the individual's susceptibility.