John Manning

Person

The researcher who first reported the sex difference in the 2D:4D digit ratio, finding it to be smaller in men than in women and detectable in children.

Mentioned in 1 video

Videos Mentioning John Manning

How Hormones Shape Sexual Orientation & Behavior | Dr. Marc Breedlove

How Hormones Shape Sexual Orientation & Behavior | Dr. Marc Breedlove

Andrew Huberman

The researcher who first reported the sex difference in the 2D:4D digit ratio, finding it to be smaller in men than in women and detectable in children.