Jewish World Review
http://www.jewishworldreview.com | (UPI) -- Women exposed to male perspiration saw their moods brighten, tension reduced and relaxation increased.
Scientists at the University of Pennsylvania and the Monell Chemical Senses Center in Philadelphia say male pheromones also affect a woman's luteinizing hormone, which in turn affects the length and timing of the menstrual cycle.
Extracts from the underarms of male volunteers were applied to the upper lip of 18 women ages 25 to 45.
During the six hours of exposure to the compound, the women were asked to rate their mood using a fixed scale.
Further testing showed a shift in blood levels of the luteinizing hormone, which is produced in pulses by the pituitary gland.
The male underarm secretions hastened onset of pulses.
The underarm extracts came from men who bathed with fragrance-free soap and refrained from deodorant use for four weeks.
None of the women in the study discerned male sweat had been applied right under
their noses; some believed they were involved in a study of alcohol, perfume or even lemon floor wax.
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