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Most girls get their first menstrual cycle between 12 and 13 years old, according to The American College of Obstetricians and Gynecologists. The age of menstruation onset is slightly younger for Black girls due to health disparities, increased material hardship, and levels of stress. For Black girls, the first moon party is a rite of passage ...
Diagram illustrating how the uterus lining builds up and breaks down during the menstrual cycle Menstruation (also known as a period, among other colloquial terms) is the regular discharge of blood and mucosal tissue from the inner lining of the uterus through the vagina. The menstrual cycle is characterized by the rise and fall of hormones. Menstruation is triggered by falling progesterone ...
Menstrual cycle The menstrual cycle is a series of natural changes in hormone production and the structures of the uterus and ovaries of the female reproductive system that makes pregnancy possible. The ovarian cycle controls the production and release of eggs and the cyclic release of estrogen and progesterone. The uterine cycle governs the preparation and maintenance of the lining of the ...
Elena Shlyapnikova/getty images. 1. You’ve Almost Hit Menopause. Women in perimenopause may have delayed menstrual periods due to a natural decline in ovarian function. “Perimenopause begins ...
Researchers looked at health data which over 71,000 women born between 1950 and 2005 self-reported on their iPhones and Apple watches.
Liesel Teen, a labor and delivery nurse and founder of Mommy Labor Nurse, explains that “where you are in your menstrual cycle can affect different things, including your weight, vaginal ...
Fewer than 10% of U.S. girls start to menstruate before 11 years of age, and 90% of all U.S. girls are menstruating by 13.8 years of age, with a median age of 12.4 years. This age at menarche is not much different (0.3 years earlier) than that reported for U.S. girls in 1973.
After providing personal details, they were given a description of menstrual synchrony: "Menstrual synchrony occurs when two or more women, who spend time with each other, have their periods at approximately the same time" (p. 257). [62] After reading the description they were asked whether they were aware of menstrual synchrony and whether ...