Constance Zimmer was on birth control “for way too long.” “My general practitioner had told me I should get off my birth ...

Medically reviewed by Laura Young, MD Key Takeaways Hormonal IUDs prevent pregnancy by releasing progestin that thickens cervical mucus and thins the uterine lining.They can reduce heavy menstrual ...

Amanda MacMillan is a health and science writer and editor. Her work appears across brands like Health, Prevention, SELF, O Magazine, Travel + Leisure, Time Out New York, and National Geographic's The ...