Can you ride back on rollar coasters after a major car accident?

You probably could but i would not. If you have any head injury it will cause further injury, it could reopen wound, or other dangerous factors. Our body's were made to handle a lot of damage but you would not want to push it cause the smallest things could be the thing that takes your life when it comes to your health. I would avoid rollar coasters till you know you are fully healed.