Two-thirds of women in America have Alzheimer’s. Many researches have claimed that the reason for the increase in this disease in women is their long life. But recent research points to other aspects of it. According to one study, one in five women over the age of 65 has Alzheimer’s. There are many women with Alzheimer’s who seem to forget many words that are said during a single sentence. But why does this disease affect women instead of men? Research has shown that menopause in old age may be one of the reasons why estrogen levels in a woman’s body begin to decline. Research has claimed that women are at higher risk of developing Alzheimer’s than men due to increased belly fat. Over the past 15 years, there has been a 39% increase in the incidence of Alzheimer’s in women due to increased belly or waist fat. Research has shown that there are 4 genes that are responsible for this disease. Three of these genes increase the risk of developing Alzheimer’s in women, while one gene is responsible for causing the disease in men.