Caroline discovered today that there is a scientific reason for her (mercifully short-lived) thermonuclear temper moments.

"The liver is the main organ for breaking down hormones after they have served their messenger function to their target cells. For example, if the liver does nor break down insulin quickly enough, hypoglycemia results as the still circulating insulin continues to lower blood sugar. If the liver does not metabolize estrogen properly, PMS will result. Failure to dispose of adrenalin (the "fight" or"flight" hormone) after it has outlived its usefulness may lead to chronic irritability and temper explosions"

So essentially she’s drinking enough to prevent the liver digesting hormones which is causing the flare-ups. Hmmm.