"Sixth-grade teachers will tell you that girls get up and go to the bathroom together; girls say they have to go at the same time. They need to go off and intimately exchange the important currency of their day, which increases their oxytocin and dopamine levels. " "The hormone of intimacy is oxytocin, and when women talk to each other, they get a rush of it. For teen girls especially, when theyâre talking about whoâs hooking up with whom, whoâs not talking to whom, who you like and donât like â thatâs bedrock, that excites the girlâs brain." "Women use about 20,000 words a day, while men use about 7,000." "The female brain shrinks 8 percent during pregnancy and does not return to its former size until six months postpartum." "A stereotype always has an aspect of truth to it, or it wouldnât be a stereotype." These are quotes from Dr. Louann Brizendine, professor of nueropsychaitry at the University of California.