Pardon the off-topic post here:
Trying to re-grow some brain cells
Every time we completed one of our large all-consuming construction management projects usually taking anywhere from 6-18 months, and more particularly after our retirement back in 2012 from this type of work, we found ourselves with a huge number of chain-of-events and facts about the project and about all its participants not to mention about the project itself occupying valuable brain-cells.
A lot of this stuff is probably still there someplace in the brain-archives, but I always felt my brain became a bit mushy and empty after my telling it that all of this information it had carefully gathered and kept handy was now useless, would never be needed again, and would be best deleted.
Something like a complete reformat would have been useful at times!!!

Soo, no need to grow new ones if you just clean out the trash from the good ones you already have!!!!