Low-pressure System An area of a relative pressure minimum that has converging winds and rotates in the same direction as the earth. This is counterclockwise in the Northern Hemisphere and clockwise in the Southern Hemisphere. Also known as an cyclone, it is the opposite of an area of high pressure, or a anticyclone. See closed low, cold low, and cut-off low for further examples.
There is no set age at which all women will start to go through menopause. The average age of menopause in the United States is 51, but it is considered perfectly normal for a woman to go through it at any time between the ages of 35 and 59, says Lila Schmidt, MD, a reproductive endocrinologist in private practice in San Diego. âAnything above 35 is not premature,â she says.
Menopause is a natural part of a woman's life cycle. While menopause symptoms can be frustrating and, at times, overwhelming, the process is natural. Understanding this change better will help women get through the symptoms and choose the right treatments for their needs.he average age range is 47 to 55 years. Those who start menopause before age 45 are considered to have early menopause, while those who begin before age 40 are said to have premature menopause. The entire transition takes between four and five years, and during this time women can still get pregnant.