[s4e10] The — Alien Parasite Hypothesis

Sheldon’s preferred theory, as he finds it more plausible than the final option.

Amy informs Penny that the iconic heart shape is actually based on the shape of a female’s buttocks when bending over. The Alien Parasite Hypothesis | The Big Bang Theory Wiki [S4E10] The Alien Parasite Hypothesis

After rejecting Zack's lack of intellect, Amy adopts the Vulcan practice of Kolinahr to purge her emotions. Sheldon’s preferred theory, as he finds it more

Fans often point out that Sheldon and Amy eat lunch in the lab while Amy is slicing brain tissue—a major violation of safety protocols. Fans often point out that Sheldon and Amy

In The Big Bang Theory Season 4, Episode 10, Sheldon and Amy's relationship faces its first biological "crisis." After Amy experiences a physical reaction to Penny's ex-boyfriend Zack, she and Sheldon attempt to diagnose her symptoms with rigorous scientific logic. The "Diagnosis" Breakdown

Howard and Raj fight over who would be the superhero and who would be the sidekick after a lab tech is bitten by a radioactive rat. Production Trivia