[Jessica H]

I wonder if fluctuating hormones might also have something to do with the depression rate, i.e. postpartum and menopause.  But I definitely agree that women are probably most likely to seek out treatment and that is probably throwing off the statistics.

I'm also curious- how is "emotionality level" measured?

[Tintin_Triton]

LOL...

Everyone cries.
I did not cry when my grandfather passed away, while I was perhaps the most attached to him.
I cried when I heard the song Vanilla Twilight from ocean eyes, by Owl City. The lyrics are too good.
Does that make me less emotionally sensitive?

NO!

Well, I think ( I hypothesize) everyone has a different level of emotional stress that they can handle. It erupts from memories, frustrations, wills, vanity, etc. So Roger Federer cried in 2009 Australian Open because he knew how close he was to winning, same goes with Andy Murray.
They cried because they had done a lot of hard work, yet it didn't just click for them. Mentally it has been programmed in our brains, that hard work makes success, so when it did not come for them, they cried to let go of their hyper stressed emotional level.

So Women and Men cry after they have reached a certain emotional stress.

How much is that? I think it can vary with individuals.
Physiologically, you all have drawn out quite a number of mechanisms.   

[yor_on]

Brainy stuff.
Variola is quite right in that we have different brains, males versus females. We might see it as Natures hard coded specialization to fulfill what respective needs we have, I mean, why else would it follow us from generation to generation?

And thank God that we are different
As I like too see it.

As for right and left hemisphere behavior. I remember when it was a very hot topic, and it still is I guess? But I think it's much subtler than that. Some differences I'm sure there are, but our brain is a fantastic plastic thing. Able to reconstruct itself if given a chance, not wholly, but at least use its 'plasticity' to relearn what neurological damage might have destroyed somewhere else inside it. And our cortex grows with learning too. We have just begun to look at the brain and its mysteries.

But as for emotional differences? Both sexes cry, although we do it at different times for different needs. But we share the same complex of emotions and therefore its only logical to expect us to be able to cry for the same things/feelings too, although, depending on how we grow up our outbursts may differ. And the same feelings might come from different stimuli. Where genes grip in and social factors drop out? That's a real tough one.

[yor_on]

Considering our male female qualities, why not check it out? And no cheating, you hear. Thy Brain Examined, Are Thy Under Disguise?

[cheryl j]

I think its hormaonal as well - I cried more in my 20s than I do now that I am older. And it maybe related to neurotransmitters. When I took prozac I went for months or a year without crying, even in situations that would normally trigger it. Lack of sleep makes me more prone to tears. I've also noticed that crying makes me sleepy afterwards.

[janine38]

men cry a lot. I don't know what you mean when you say they do not cry. Watch ultimate fighter every season and see grown men who makes money fighting cry after being defeated.