My medical bills and cracked helmets can confirm. To add to this, anyone in the Des Moines area should hit up Banner's track. Short, but fun (twss).
To add to this thread, I've mostly cutout drinking, and stopped medicating (benedryl, melatonin, etc...) to sleep. Still sleep like **** now and then, but have a much clearer mind the next day, which by itself has been a brain boost.
I've also adopted the "**** em" mentality. It's easy to get caught up with the drama, the negativity, and all that ****, but I've shifted towards letting those toxic things that and people that are out of my control go.