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
Certain types of cancer treatments can cause women to have early menopause. This is menopause that occurs before age 40. It happens when your ovaries stop working and you no longer have periods or cannot get pregnant. Early menopause can cause symptoms such as hot flashes and vaginal dryness. Your health care provider can help you find treatments for these symptoms.
This phase presents similar symptoms to menopause that gradually increase, including fatigue, irritability, mood swings, and weight gain. The difference is that women in perimenopause continue to have periods, although they may be irregular. When you do not have a period for 12 months, you have entered menopause. Early menopause occurs in women between the ages of 40 and 45, and occurs naturally, in other words, is not medically or surgically initiated.