The New Science of Sexual Fluidity

By the time most people reach young adulthood, even if they’re not in a committed relationship, they’re generally expected to know what kind of person they want to be with, that is, the gender of an ideal mate. Sexual orientation is widely assumed to be fixed after a certain point in early life development. But for years psychologist Lisa Diamond has been challenging that notion, and through her research offers a radical new understanding of sexual orientation, arguing that it’s much more fluid than previously believed.