Fathers are calibrating the state of their manhood after the release of a much-discussed study of 600 men that indicates that testosterone drops after a man becomes a father.
By ALEX WILLIAMS, New York Times
Fri, 09/16/2011 - 7:12pm
Fathers are calibrating the state of their manhood after the release of a much-discussed study of 600 men that indicates that testosterone drops after a man becomes a father.