I am most concerned about the brain fog. Does it every completely recover?

My boss has commented that I seem "out of it" for the past week. My job requires me to synthesize different types of information to come up with predictions on the future. This job is extremely cognitively taxing (or stressful).

For my whole life I have been depending on my ability to think well. Having permanent damage is extremely disturbing I completely empathize with Laupala.

Most importantly, if it is true that the brain does not structurally heal, I want to know the environmental factors that prevent things from getting worse (e.g. lifestyle, nutrition, supplementation, etc.). A lot of the brain damage is not immediate, but occurs throughout the days after the TBI. Research has not gotten to this level of detail yet.

Does anyone here have reliable information (from a credible source) on what can be done to reduce brain damage? (e.g. lifestyle, nutrition, supplementation, dosages, etc.)

Even if they discover that supplement X reduces brain volume loss by 10% after concussion if immediately taken at daily doses of Y, it would be very helpful for future sufferers of concussion.