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.
Most women begin menopause between the ages of 40 and 58. Early menopause usually refers to onset before age 40. Menopause occurs when your ovaries stop producing estrogen, the hormone that controls the reproductive cycle. Anything that damages your ovaries or stops estrogen production can cause early menopause. This includes chemotherapy for cancer or an oophorectomy (removal of the ovaries). In these cases, your doctor will help prepare you for early menopause. But you can go into menopause early even if your ovaries are still intact.