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 ...
Menstruation (also called menstrual bleeding, menses or a period) is the first and most evident phase of the uterine cycle and first occurs at puberty. Called menarche, the first period occurs at the age of around twelve or thirteen years. [8] The average age is generally later in the developing world and earlier in the developed world. [42]
Some species, such as cats, cows and domestic pigs, are polyestrous, meaning that they can go into heat several times per year. Seasonally polyestrous animals or seasonal breeders have more than one estrous cycle during a specific time of the year and can be divided into short-day and long-day breeders:
For premium support please call: 800-290-4726 more ways to reach us
prevernal, vernal, estival, serotinal, autumnal, hibernal Seasonal changes of a tree over a year. Ecologically speaking, a season is a period of the year in which only certain types of floral and animal events happen (e.g.: flowers bloom—spring; hedgehogs hibernate—winter). So, if a change in daily floral and animal events can be observed ...
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. "For example ...
The season in which babies are born can have an effect on their future risk of developing neurological disorders like seasonal affective disorder, bipolar depression, and schizophrenia; [2] [3] as well as type I diabetes. [4] Research has shown that the season of a baby’s birth can have an effect on whether or not they will become a heavy smoker.
We get an extra day this month. Whether you’ve realized it or not, 2024 is a leap year. Every four years (typically), a leap year occurs in February — making it 29 days long instead of the ...