
from the first BRAIN I ever dissected.
The Big Bang Theory Season 9, Episode 19

Well, some people think
the sexiest organ is the BRAIN.
The Big Bang Theory Season 9, Episode 8

You're still working on
Sheldon's dumb BRAIN teaser?
The Big Bang Theory Season 11, Episode 12

Yeah, I'd love to see
a scan of your BRAIN sometime.
The Big Bang Theory Season 2, Episode 15

A new study came out, and it said that
laughing makes your BRAIN work better.
The Big Bang Theory Season 10, Episode 9