Search results
Results from the WOW.Com Content Network
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 ...
Menstrual synchrony, also called the McClintock effect, [1] or the Wellesley effect, [2] is a contested process whereby women who begin living together in close proximity would experience their menstrual cycle onsets (the onset of menstruation or menses) becoming more synchronized together in time than when previously living apart.
Especially with laws like the tampon tax and the lack of free menstrual products in most bathrooms, many are forced to miss school or work due to lack of access. [172] One in five low-income women have reported missing work, school or similar events due to lack of access to period supplies. [173]
Because periods can reveal so much about a woman’s health, says Vash-Margita, all doctors — not just gynecologists — should pay attention to women’s periods. Vash-Margita says that regular ...
For young women in many cultures, the first menstruation is a marker that signifies a change in status. Post-menarche, the young woman enters a stage called maidenhood, the stage between menarche and marriage. [41] There are cultures that have in past centuries, and in present, practiced rites of passage for a girl experiencing menarche. [42]
Similarly, the number of people starting their period “very early” — before 9 — more than doubled, rising from 0.6% to 1.4%. On average, periods now take longer to become regular.
A female dog is usually diestrous (goes into heat typically twice per year), although some breeds typically have one or three cycles per year. The proestrus is relatively long at 5 to 9 days, while the estrus may last 4 to 13 days, with a diestrus of 60 days followed by about 90 to 150 days of anestrus.