Most of us experience some hair loss as we get older, owing to changing hormones, age, and heredity. Some prescription drugs can also cause hair loss. A small proportion of women experience a pronounced loss of hair at midlife, ranging from thinning and drying of the hair to baldness. Some of us find that thinning and hair loss occur where we part our hair and on the top portion of our heads. Loss of hair can have an impact on our body image, particularly in Western culture, where much value is given to the color, texture, length, and shape of our hair. Hair loss at midlife is usually permanent. It cannot be reversed with hormone treatment, but some prescription drugs, such as oral minoxidil, have been found to help some women.