Tim and Eric introduce Dr. Mark Laursen and discuss body odor.

Tim, Eric, and Dr. Laursen take a look at zits, boils and lesions.

Tim, Eric, and Dr. Laursen take a look at penises and vaginas.

Tim, Eric, and Dr. Mark try to wrap their heads around flatulence.

Tim and Eric, along with the medical expertise of Dr. Mark, discuss solid bowel movements.

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