
...to measure your BRAIN waves
while potty training.
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

l could so use
a BRAIN transplant right now.
Breaking Bad Season 4, Episode 2

♪ Sheldon
and his BRAIN... ♪
The Big Bang Theory Season 7, Episode 6