“There are so many variables-there’s the chemistry, the viscosity, the setting, the evaporation rate and the settings of the microscope,” Fisher says. Emotional tears, for instance, have been found to contain protein-based hormones including the neurotransmitter leucine enkephalin, a natural painkiller that is released when the body is under stress.Īdditionally, because the structures seen under the microscope are largely crystallized salt, the circumstances under which the tear dries can lead to radically dissimilar shapes and formations, so two psychic tears with the exact same chemical makeup can look very different up close. ![]() Reflex tears are secreted in response to an irritant, like dust, onion vapors or tear gas.Īll tears contain a variety of biological substances (including oils, antibodies and enzymes) suspended in salt water, but as Fisher saw, tears from each of the different categories include distinct molecules as well. Basal tears are released continuously in tiny quantities (on average, 0.75 to 1.1 grams over a 24-hour period) to keep the cornea lubricated. Both tears of grief and joy are psychic tears, triggered by extreme emotions, whether positive or negative. You could cut out pictures from magazines or newspapers and paste them on an. Scientifically, tears are divided into three different types, based on their origin. Final Output Task 7 LETS CUT EM UP AND PASTE EM Make a shape collage. ![]() ![]() Onion tears, photo © Rose-Lynn Fisher, courtesy of the artist and Craig Krull Gallery, Santa Monica, CA
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