The Evolution of a Big, Ugly Cry
Briefly

I cry on a lot of planes, and often for no good reason. I did it just the other day, deep in the throes of a romance novel at 30,000 feet. I'm never a pretty, feminine weeper... Your feelings are running out of your face through every available orifice.
...a good healthy cry is never simply picturesque droplets coursing down your shining cheeks. No. Your eyes are red and sore, and your nose will just not stop running. Not the thick gobbets of mucus from the tail end of a cold, but thin, pale streams...
But while that stream is gross, it's also wondrous. Because when you sob, your nose is sobbing with you. And when you cry at a Hallmark commercial, you're doing something uniquely human.
There are, in fact, three types of tears. The subtle basal tearwhich is different from the ones I sob comes from tiny glands under your eyelids, called the accessory lacrimal glands...
Read at www.scientificamerican.com
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