Why Sexy Is Sexy

The video explores the concept of mate choice from an evolutionary perspective, emphasizing its complexity and importance. It discusses Charles Darwin's theory of sexual selection, highlighting how certain traits become preferred due to their perceived health and fertility benefits. The video explains the role of bilateral symmetry and waist-to-hip ratio in human attraction, linking these traits to health indicators. It also delves into the influence of pheromones and genetic compatibility, particularly the major histocompatibility complex (MHC), on mate selection. Despite these factors, the video concludes that mate choice remains a complex and often irrational process.

Explain the relationship between bilateral symmetry and attraction in humans.

What is the major histocompatibility complex (MHC) and why is it important in mate selection?