Birth Control Pills May Be Shrinking A Vital Brain Region In Women, Study Finds
According to the study, women who take birth control pills have significantly smaller hypothalamus volume. The hypothalamus is among the most important areas of the brain, and has a hand in nearly everything one does on a day-to-day basis. This includes appetite, sex drive, overall mood, body temperature, sleep patterns, and heart rate. Situated at the base of the brain above the pituitary gland, the hypothalamus also produces essential hormones.
http://www.studyfinds.org/birth-control-pills-may-be-shrinking-a-vital-brain-region-in-women-study-finds/
...and they won't prevent STD's either.

Liberals are like a "Slinky". Totally useless, but somehow ya can't help but smile when you see one tumble down a flight of stairs!