Search results
- Dictionaryperiod/ˈpɪərɪəd/
noun
- 1. a length or portion of time: "he had long periods of depression" Similar
- 2. the interval of time between successive occurrences of the same state in an oscillatory or cyclic phenomenon, such as a mechanical vibration, an alternating current, a variable star, or an electromagnetic wave.
adjective
- 1. belonging to or characteristic of a past historical time, especially in style or design: "an attractive and beautifully modernized period house"
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Sep 27, 2016 · Menstruation occurs between menarche (pronounced muh-NAHR-kee), a girl's first period, and menopause, when menstrual cycles end. 1 The average menstruation time in normally menstruating women is about 5 days. 2 In the United States, most girls start menstruating shortly after 12 years of age. 3
Oct 28, 2013 · Pregnancy is the term used to describe the period in which a fetus develops inside a woman's womb or uterus.Pregnancy usually lasts about 40 weeks, or just over 9 months, as measured from the last menstrual period to delivery. Health care providers refer to three segments of pregnancy, called trimesters. The major events in each trimester are described below.1
For most women, a normal menstrual cycle ranges from 21 to 35 days.1 However, 14% to 25% of women have irregular menstrual cycles, meaning the cycles are shorter or longer than normal; are heavier or lighter than normal; or are experienced with other problems, like abdominal cramps.2 Irregular cycles can be ovulatory, meaning that ovulation occurs, or anovulatory, meaning ovulation does not occur. The most common menstrual irregularities include:
NICHD research formed the basis of a recent change to the gestational period within a pregnancy that is recognized as "full term." According to the new designations : Early term is defined as 37 weeks through 38 weeks and 6 days. Full term is defined as 39 weeks through 40 weeks and 6 days.
Menstruation occurs between menarche (pronounced muh-NAHR-kee), a girl's first period, and menopause, when menstrual cycles end. 1 The average menstruation time in normally menstruating women is about 5 days. 2 In the United States, most girls start menstruating shortly after 12 years of age. 3.
Weaning is the process of switching an infant's diet from breast milk or formula to other foods and fluids. In most cases, choosing when to wean is a personal decision. It might be influenced by a return to work, the mother's or infant's health, or just a feeling that the time is right.1
Jan 31, 2017 · Content Owner Office of Communications Last Reviewed Date 1/31/2017. Pregnancy is a period of up to 41 weeks in which a fetus develops inside a woman’s womb. NICHD conducts and supports research and training to help promote healthy pregnancies, with a focus on the important events that occur before, during, and after pregnancy.
Dec 30, 2017 · Research shows that as many as 13% of U.S. women reported frequent symptoms of depression after childbirth, and that anxiety co-occurs in up to 43% of depressed pregnant and postpartum women, making pregnancy-related depression and anxiety among the more common pregnancy complications. 8 These medical conditions can have significant effects on the health of the mother and her child.
May 20, 2016 · Having a healthy pregnancy is one of the best ways to promote a healthy birth. Getting early and regular prenatal care improves the chances of a healthy pregnancy. This care can begin even before pregnancy with a pre-pregnancy care visit to a health care provider.
Jan 31, 2017 · Menstrual irregularities are changes to the menstrual cycle that result in missed periods, irregular periods, or excessive bleeding. NICHD is one of many federal agencies and NIH Institutes working to understand menstrual problems. NICHD supports and conducts research on what causes menstrual irregularities and how best to treat and detect them.
