Then as a MENTAL exercise,
I invite you to figure out...
The Big Bang Theory Season 4, Episode 22
You need to push your brain out of its
comfort zone and reach MENTAL exhaustion.
The Big Bang Theory Season 10, Episode 22
I heard you had
some kind of a MENTAL break?
Westworld Season 3, Episode 8
who don't have MENTAL problems.
The Big Bang Theory Season 9, Episode 10
Well, clearly MENTAL tasks are not enough.
The Big Bang Theory Season 10, Episode 22