Tears tell men women aren't interested tonight
New research suggests that women's tears may be a chemo-signal that discourage sexual arousal in men (Image: OUCHcharley via Flickr)
Article Summary
It is well-documented that our bodies give off coded chemical signals via sweat, excretions and pheromones that convey messages to other members of our species. Yet the significance of odorless human tears has continued to draw a blank since Charles Darwin first suggested that emotional displays were originally motivated by functional purposes. One hundred and fifty years later, new research from scientists at the Weizmann Institute’s Neurobiology Department suggests that in fact, tears may be a chemo-signal, as a chemical in women's tears seems to discourage sexual arousal in men.
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