The first hormonal contraceptive (the 'pill') was approved by the US Food and Drug Administration in 1960.
Hormonal contraceptives have since become one of the most prescribed drugs in the world, used daily by more thanThese drugs prevent pregnancy by delivering synthetic hormones into the bloodstream. Synthetic hormones stop the body's own hormones from stimulating ovulation, so no eggs are released, no fertilization can occur, and pregnancy is prevented.in humans and other animals. But less is known about the behavioral effects of synthetic hormones – like those in the pill.
Some of the hormones affected by the pill are linked to competitive behavior. We wanted to find out more about how hormonal contraceptives change this behavior, soHormones and competition Competition is part of life. We compete for a variety of resources, such as money, food, mates and allies, to fulfill our needs and improve our chances of survival and flourishing.
These resources may also be intangible things, such as social status, that give us access to more direct goods. A high-status individual may have better opportunities for education and jobs, for example. Hormonal contraceptives directly affect three hormones that have been linked to competitive behavior:
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