This is your brain makin' everything make sense   Countin' those nickels and dimes   This is your brain balancin' on the fence   Walkin' that logical line   This is your brain got it all under control   Both hands on the wheel   Stay in your lane, keepin' it tame   This is your brain      Then she walks right by and that all goes out the window   And your IQ starts to dwindle, at the mention of her name   And she winks and smiles and your heart starts overloadin'   And you're crazy over everything she does   You ain't insane, this is your brain, on love      This is your brain, buddy, you can handle this   Gotta just get a grip   This is your brain, man, there ain't a woman alive   That you can't resist   This is your brain, baby, just slow on down   Don't want to jump the tracks   You can refrain, keep it contained   This is your brain      Then she walks right by and that all goes out the window   And your IQ starts to dwindle, at the mention of her name   And she winks and smiles and your heart starts overloadin'   And you're crazy over everything she does   You ain't insane, this is your brain, on love      You think that you're too clever now, to ever fall again   And your Medulla Oblongata says, "Boy, get out while you can"      Then she walks right by and that all goes out the window   And your IQ starts to dwindle, at the mention of her name   And she winks and smiles and your heart starts overloadin'   And you're crazy over everything she does   You ain't insane, this is your brain, on love   You ain't insane, this is your brain on love   Sweet love