Remember all those John Hughes movies filled with drama and teenaged angst? Beginning at about age nine, my daughter became Molly Ringwald four days out of the month. Sobbing frenzies predicated by a far-flung brush and “I hate my hair!” A room full of clothes and nothing to wear. Crying jags over misunderstandings. But studies have me wondering if this monthly moodiness might have something to do with hormones. Is this early puberty?