![Let's apply the scientific method.
Perform an experiment.
Let's apply the scientific method.
Perform an experiment.](data:image/png;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs=)
Let's apply the scientific method.
Perform an experiment.
The Big Bang Theory Season 6, Episode 5
![You need your sleep for your cognitive
processing to perform at optimum levels.
You need your sleep for your cognitive
processing to perform at optimum levels.](data:image/png;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs=)
You need your sleep for your cognitive
processing to PERFORM at optimum levels.
The Big Bang Theory Season 2, Episode 6
![and some will perform those
better than others.
and some will perform those
better than others.](data:image/png;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs=)
and some will PERFORM those
better than others.
The Big Bang Theory Season 11, Episode 12
![♪ I've got parts to perform,
hearts to warm ♪
♪ I've got parts to perform,
hearts to warm ♪](data:image/png;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs=)
♪ I've got parts to PERFORM,
hearts to warm ♪
The Big Bang Theory Season 12, Episode 10
![that'll show you how
to perform your own rectal exam.
that'll show you how
to perform your own rectal exam.](data:image/png;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs=)
that'll show you how
to PERFORM your own rectal exam.
The Big Bang Theory Season 5, Episode 17