As a male who thought until recently that he could multitask, and has watched women who thought they could multitask, I have to say that it's a myth. As Jonathan says, you lose all ability to do things with care, you are at the mercy of stress, and as stress takes over, you lose the ability to focus. Sure, you think you can focus, but what you've really done is bit off the heads of all the "fools" who "can't multitask" and have rammed your own idea down the pike by force of grating personality alone.

Also, Emily, your second assignment is to learn how to punctuate. ;-)