"I'm not talking liver to you until you acknowledge my last liver talk."
That's ok, if I remain silent on that, then it would seem to still leave us a couple dozen other potential organs to discuss, particularly the brain. Women's brains have more white matter than men's, and men's have more grey matter. So, we know that the differences between the genders includes at least one grey area. Interestingly, lithium only promotes growth of the grey.