A new study in the United States: Taking birth control pills can affect the way women remember information. Oral contraceptive pills change the way women remember information by altering their hormone balance, according to University of California researchers who completed a new study. Studies have found that women who take birth control pills often cannot remember the details of an event, only the overall feeling of the event. The women involved in the new study were divided into an oral contraceptive group and a natural group who did not take the pill.

The researchers conducted a comparative study on the memory of a car accident between two groups of participants. It was found that women who took birth control pills had clearer memories of traumatic episodes. And those women who did not take birth control pills remembered more details of the car accident, such as the fact that there was a fire hose next to the vehicle involved in the accident.

Dr. Larry Cahill, a neurobiologist who led the new study, said that birth control pills affect estrogen and progesterone hormone levels, and these two hormones are closely related to women's logical memory ability. New research explores the impact of oral contraceptives on women's work.