A new study shows that the birth control pill may affect the way women
respond to pheromones—making them more likely to choose partners with whom they
are not genetically compatible. Previous studies have shown that couples who
have different aromatic genetic make-ups are more likely to be faithful and to have
children with stronger immune systems. Now, in a study involving 100 women,
British researchers have found that women on the pill prefer men whose genetic odors
are similar to their own.
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