Dr. Gail Saltz, a psychotherapist and author of Becoming Real, says that the mother-daughter relationship defines all other relationships in our lives.
"Because mother and daughter are the same sex, there tends to be competition," Dr. Saltz says. "It's not on the surface. But there is that competitive feeling on both sides. A mother envying to some degree her daughter coming up and, you know, being youthful. Getting attention. Having all of her choices in front of her."