Recent research suggests that Americans remain divided over the sources of gender differences, suggesting that the issue is likely to remain contested. Some of the evident differences are likely culturally prescribed, while sources of others may lie more in distinct biological or physiological traits. While some differences between men and women are readily apparent, the nature of gender differences has been a source of enduring debate. In American society, the debate over the degree to which men and women are different continues to serve as a cultural and political flash point.