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.
Some of the most common menopause symptoms include: (2) 1  Irregular periods: As perimenopause begins (the period before menopause technically starts), periods can come and go, plus get heavier or lighter at times. This can sometimes continue for several years during menopause. 2  Hot flashes and night sweats.