Pseudoscientific theories like the “digit ratio” suggest finger length reveals personality traits. A longer ring finger (low 2D:4D) is linked to risk-taking and competitiveness, while a longer index finger (high 2D:4D) is tied to empathy and nurturing. Equal lengths indicate a mix of traits. Popularized by biologist John Manning, this idea connects digit ratios to behavior and health but remains scientifically debated.
P3. The insights your finger length offer about your personality
