Hormones or Sleep Loss?

I love that as a woman I can blame any mental breakdowns, uncontrollable crying fits, out of control anger, and random crying on hormones. It doesn't matter at what point of the month it is, our hormones are always fluctuating. We have progesterone, estrogen, LH, FSH, and who knows what else just bouncing around and changing levels all the time. No wonder we are so moody. But actually I usually don't blame it on hormones, I blame it on lack of sleep. I really do get extra grumpy when I don't get enough sleep, which is almost all the time.