What hormonal change associated with approaching perimenopause in the late 30s and early 40s can lead to shifts in cycle length?
Answer
The ovaries may start producing less estrogen
As individuals transition into their late 30s and early 40s, the body initiates changes in preparation for perimenopause. A key physiological shift during this period involves the ovaries gradually beginning to decrease their output of estrogen. This reduction in estrogen production directly impacts the regulation of the cycle, often leading to variations in cycle length; some people might experience consistently shorter cycles, while others might notice them becoming progressively longer as the system adjusts to lower circulating estrogen levels.
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