Just because they're hormonally mediated doesn't make them fake, they're very real. It's like telling a schizophrenic their reality isn't real. To them it's absolutely real, it's just not what you happen to be experiencing.
It's kind of like PMS or 'roid rage, sometimes you have to force yourself to take a breath and accept that what you're feeling is real, but that hormones may be adding fuel to the fire. That you may need to think twice before you speak once (or sob once, whatever the case).