the Lewis and Langlois Hypothesis

The Lewis and Langlois Hypothesis suggests that the way facial features develop and change over time is influenced by both genetics and environmental factors. Specifically, individual differences in facial characteristics can be partly explained by genetic makeup, while external influences like nutrition, habits, and age-related changes also play a significant role. This hypothesis highlights the interplay between inherited traits and life experiences in shaping facial appearance throughout a person’s life, emphasizing that both biology and environment contribute to the diversity observed in human faces.