1. Irregular Periods. Women often have irregular menstrual cycles. Periods can continue longer than expected or maybe they will be much shorter or skipped altogether. Pregnancy is one common reason for this irregularity in earlier years, but by the time the mid-40s is reached the menopause becomes a leading cause of variations in period heaviness and length of time. A reduction in the levels of the estrogen and progesterone hormones changes the body chemical balance the woman became accustomed to during her child-bearing years, and it can affect the menstrual cycle in this such a way.
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