Changes in Kathryn's brainmap before and after training indicate fewer frontal slow (delta) waves correlating wtih a greater mental clarity, increased word finding, and better focus.
Kathryn was an executive working in corporate leadership in the Washington DC area. She suffered four concussions over a period of five years due to several car accidents and a fall. One concussion is bad enough, but multiple concussions without full recovery of the previous one leads to much more severe difficulties. Prior to the accidents, Kathryn worked a 60 hour work week, had a photographic memory and excellent mental stamina.
Peak Neurofitness and Other Mind Matters
I showed up for my training appointment in the middle of a major hot flash episode. I almost cancelled my appointment. The most amazing thing happened during my training session. My hot flashes just seemed to vanish ... Wow 
I used to have trouble with carrying over the events of the day, which would keep me from falling asleep or wake me up in the middle of the night replaying things. Now it’s like I’m able to flip a switch and leave it all behind. Eighteen months since my last training, I’m still sleeping great.
I was alert and focused well into the afternoon when the rest of the attendees were fading. They all wanted to know where I got my energy!