Shondras menstrual periods have been irregular for the last several months. sometimes there have been only two weeks between periods, and sometimes she will experience a 50 day cycle. she also now has less bleeding than when she was younger. according to the text, those changes are due to what?

Premenopausal

Explanation:

Premenopause is a period of many changes in a woman's body and metabolism. Premenopause is the transition from the reproductive to the non-reproductive period that usually begins 10 years before menopause.

Premenopause occurs due to decreased production of female sex hormones, resulting in changes in the woman's body with menopause-like symptoms and this period is scientifically referred to as climacteric. At this time, the woman experiences irregularity of the menstrual cycle, and may menstruate at very short time intervals (two weeks in a row, for example) or very long time intervals (50 days and even months, for example).