Perimenopause, literally meaning “around menopause” refers to the time period when a woman’s body makes it’s natural transition towards menopause. This can happen as early as a woman’s mid-30’s but typically begins in her 40’s. At this time, oestrogen levels rise and fall unevenly and can cause a variety of confusing symptoms. Progesterone decreases as a woman ages. In Perimeopause levels will be lower than normal and can cause side effects such as anxiety. Find out where you are in the cycle of life.