
Homeostasis refers to a system's ability
to regulate its internal ENVIRONMENT.
The Big Bang Theory Season 6, Episode 2

and picture yourself
in a peaceful ENVIRONMENT.
The Big Bang Theory Season 7, Episode 13

...in a reward-based ENVIRONMENT?
The Big Bang Theory Season 8, Episode 23

trying to change
my ENVIRONMENT,
The Big Bang Theory Season 7, Episode 16

You know, if this experiment is going to
be valid, I suggest a neutral ENVIRONMENT.
The Big Bang Theory Season 10, Episode 4