Continental climates are often found to be relatively dry. Most of the moisture carried by air masses originating over ocean regions far away is lost as rainfall earlier in its journey. Regions of the Earth that have continental climates include Siberia and central Russia, and much of North America.
A. Perimenopause, or menopause transition, begins several years before menopause. It's the time when the ovaries gradually begin to make less estrogen. It usually starts in a woman's 40s, but can start in her 30s or even earlier.Perimenopause lasts up until menopause, the point when the ovaries stop releasing eggs. In the last 1 to 2 years of perimenopause, this drop in estrogen speeds up. At this stage, many women have menopause symptoms.. Perimenopause, or menopause transition, begins several years before menopause. It's the time when the ovaries gradually begin to make less estrogen. It usually starts in a woman's 40s, but can start in her 30s or even earlier.
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.ccording to the National Institutes of Health, if you start your periods early (before age 12) and go through menopause late (after age 55), you have an increased risk for breast cancer.