However, a study conducted by Jennifer Patrice Sims found that generally mixed-race people were perceived as more attractive, but some racial mixes were not perceived as more attractive. This calls into question heterosis as an explanation for why mixed-race people are perceived as more attractive since, according to heterosis, all racial mixes should be perceived as more attractive than their monoracial counterparts. Moreover, attributing attractiveness to genetics alone ignores the role culture and socialisation has to play. Sims (as cited in Latson) argues the heterosis theory is overreaching and based on the false presumption of biologically distinct races. She asserts that attractiveness is a social construct and changes with time. For instance, the historical European ideal of a beautiful woman as having blonde hair, pale skin and blue eyes is different from contemporary ideals of beauty. For example, Rihanna is widely regarded as attractive, despite having very different features from the old ideal.