other factors that shift demand curves income is not the only factor that causes a shift in demand other things that change demand include tastes and preferences the composition or size of the population the prices of related goods and even expectations
Causes of Early Menopause. Like in menopause that happens later in life, hormonal fluctuations are one of the root causes of early menopause. However, it is not fully known why these hormonal fluctuations are triggered earlier for some women.
With the onset of menopause, however, the amount of natural estrogen and progesterone the ovaries produce drops sharply. That, in turn, can lead to such symptoms as hot flashes, night sweats, vaginal dryness, painful intercourse, mood changes, and sleep problems. It also can boost the risk of osteoporosis.