How do hormonal contraceptives affect physiological changes?
Hormonal contraceptives, such as birth control pills, patches, and intrauterine devices (IUDs), work by altering the body's natural hormonal balance. They primarily function by preventing ovulation and thickening cervical mucus to inhibit sperm passage. These contraceptives can also influence menstrual cycle regularity and reduce the severity of menstrual cramps and premenstrual syndrome (PMS).