Amy finds she has sexual feelings for Penny's ex-boyfriend Zack, while Raj and Howard try to prove who would be the better superhero.



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Episode cast overview:
Zack Johnson (as Brian Thomas Smith)


Amy experiences strange symptoms, which she believes are signs of a flu. They include an elevated heart rate, sweaty palms, dry mouth, and localized vascular throbbing. As Penny and Bernadette were present when the symptoms began, they know that Amy doesn't have the flu: she is in lust with Penny's ex-boyfriend, Zack Johnson. As Amy and Sheldon finally come to the conclusion that Amy is feeling womanly urges for the first time in her life, Sheldon has to come to terms with what his feelings for Amy are. They also have to decide how best to satisfy Amy's new biological urges. Meanwhile, Howard and Raj get into an argument: if they were to acquire super powers, who would be the superhero and who would be the sidekick. They have to come up with a way to settle the argument. Written by Huggo

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Release Date:

9 December 2010 (USA)  »

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Aspect Ratio:

16:9 HD
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Did You Know?


Sheldon states that the best number is 73. Actor Jim Parsons (Sheldon) was born in 1973. See more »


In episode 4.09 "The Boyfriend Complexity", Howard's girlfriend Bernadette mentions to Penny and Amy Farrah Fowler that Howard does not have chest hair with the except of one long hair. In this episode (4.10), Howard is seen in red wrestling tights with a lot of chest hair. See more »


Penny: [about Zack] He just didn't really challenge me on an intellectual level.
Bernadette Rostenkowski: Couldn't you just fool around with him and then listen to NPR?
Penny: Wouldn't help. Zsck can't even spell NPR.
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Crazy Credits

CHUCK LORRE PRODUCTIONS, #319 As I Get Older (a poem under construction) As I get older, I see more clearly, but not with my eyes. I hear more sharply, but not with my ears. I smell more ripely, but not with my nose... As I get older, I see more clearly, but not with my eyes. I hear more sharply, but not with my ears. I touch more intimately, but not with my finger... As I get older, I see more clearly, but not with my eyes. I hear more sharply, but not with my ears. I love more deeply, but not with my penis... As I get older, I see more clearly, but not with my eyes. I hear more sharply, but not with my ears. I think more better, but not with my brain... my head... noggin... As I get older, I see more clearly, See more »


References Star Trek: The Motion Picture (1979) See more »


Big Bang Theory Theme
Composed and Performed by Barenaked Ladies
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User Reviews

Not their best
26 July 2013 | by (United States) – See all my reviews

Full disclosure--I really dislike the character of Amy Farrah Fowler. While the guys are nerdy, but funny, she is just weird and not funny. And why are the women on this show with brains (with the exception of Bernadette) purposely made to look homely and expressionless? In this episode Amy veers away from her usual lesbian leaning commentary when she becomes attracted to one of Penny's old boyfriends. Of course, she can't figure out "what's wrong" and why she feels the way she does. Is she sick? She and Sheldon try to diagnose her problem--hence the title.

Meanwhile Wolowitz and Koothrappali are in a debate as to which of them would be the hero vs. the sidekick if they got super powers. Yeah--that's it. It's very disappointing and has none of the usual clever banter.

1 of 6 people found this review helpful.  Was this review helpful to you?

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