The main female sex hormones estrogen and progesterone is produced mainly in the ovaries in the reproductive period. Women in all stages of life, function and production of sex hormones is also varied.
Although the childhood of new active hormones at puberty, actually affects the body's hormones have since in the womb. If we look at, often newborn babies (male or female) have breasts that look great, sometimes followed by the release of a little milk.
This happens because the flow of the hormone estrogen from the mother to the fetus during pregnancy. However, this condition is only temporary and disappear within a few weeks. Although in some baby girls breast enlargement may still be live until the child is 2 years before finally disappearing completely.
At the age of puberty is the release of sex hormones will affect sexual development, sexual characteristics, and fertility. Important milestone of puberty in girls is breast budding growth, the emergence of hair in the pubic and armpit, and menstruation. Pubertal process takes approximately 4 years.
During puberty, a girl from the pituitary gland increases the secretion of two key hormones, namely folicle stimulating hormone (FSH) and luteinizing hormone (LH). Both types of hormones are essential for the release of eggs and menstruation.
In addition to the adult age helps control ovulation, fertilization, and pregnancy, estrogen helps maintain bone strength and regulate cholesterol. Progesterone works with estrogen to prepare the body of a woman facing conception, pregnancy, and helps regulate the menstrual cycle.
This hormone also plays an important role in the growth and regulate body fat distribution in women so that more fat deposits in the thighs, buttocks, and hips. In the meantime, testosterone helps build muscle and bone.
Pregnancy If the egg can be fertilized and pregnancy, hormones change dramatically in the body of a woman. Usually decreased levels of estrogen and progesterone that are common at the end of the menstrual cycle does not occur. Instead, a new hormone, human chorionic gonadotrohin (HCG), produced for the development of the placenta, stimulate the ovaries produce more estrogen and progesterone are necessary during pregnancy.
At the age of 4 months of pregnancy, the placenta takes over the job as a producer of primary ovarian estrogen and progesterone. This hormone makes the uterine lining thicker, increase the volume of blood circulation, and relaxes the muscles in the uterus so that more space is available for infants.
Before the birth, other hormones take over the role to help the uterus to contract during and after childbirth. This hormone also stimulates milk production.
After birth After birth, levels of estrogen, progesterone and other hormones plummeted, causing physical changes. Uterus will return to its original size before pregnancy, pelvic floor muscles increases, and the volume of blood circulation back to normal. This dramatic hormonal changes often lead to postpartum depression.
Menopausal hormonal changes that occur when other significant female menopause. In the 3-5 years before the end of the menstrual cycle, normal ovarian function begins to decline. This makes the menstrual cycle shorter or longer. Sometimes the ovaries produce less estrogen so it does not thicken the uterine lining does not occur until the end of menstruation.
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