James V Kohl, Michaela Atzmueller, Bernhard Fink, and Karl Grammer (2001)

Human pheromones: integrating neuroendocrinology and ethology

Neuroendocrinology Letters, 22(5):309-321.

The effect of sensory input on hormones is essential to any explanation of mammalian behavior, including aspects of physical attraction. The chemical signals we send have direct and developmental effects on hormone levels in other people. Since we don't know either if, or how, visual cues might have direct and developmental effects on hormone levels in other people, the biological basis for the development of visually perceived human physical attraction is currently somewhat questionable. In contrast, the biological basis for the development of physical attraction based on chemical signals is well detailed.

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