Alzheimer's disease affects both men and women, but studies suggest that women are more likely to develop the disease than men. According to the Alzheimer's Association, almost two-thirds of individuals with Alzheimer's disease in the United States are women. The reasons for this gender disparity are not yet fully understood, but some studies suggest that hormonal differences, genetic factors, and differences in life expectancy may play a role. While more research is needed to fully understand the relationship between gender and Alzheimer's disease, it is clear that women are disproportionately affected by this debilitating condition.