“…you're deficient in progesterone, you run the risk of over exciting the brain and any injury and it doesn't have to be a behavioral stress, but just a physical knock on the head that excites the nerves and if you get enough progesterone soon enough, the brain recovers with great ability. Just being low in progesterone, any little stress becomes a dangerous injury. And the Steins group in the last 10 years has made great progress in treating traffic accident victims of concussion and brain injury with progesterone.”