Why Do Some People Have A Widow’s Peak Hairline? An Evolutionary Biologist Explains

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2 min readKey summary
An evolutionary biologist says widow’s peaks are shaped by facial development and geometry, not a single dominant gene.
Embryonic facial growth, including the spacing of the eyes, can influence where the scalp-hair border forms.
Research and clinical cases support a morphogenetic explanation rather than a simple inheritance pattern.
Adult hair recession from androgenetic alopecia can mimic a widow’s peak, making the trait harder to study.
The piece challenges a long-standing genetics myth and offers a better framework for biology education and clinical interpretation.



