FACTS OF LIFE
Becoming a father civilizes a man. How? By causing his levels of testosterone to fall sharply after his child is born, according to researchers from Charles Drew University of Medicine and Science in Los Angeles, Harvard University and the University of Nevada. Commenting on the study, a British psychology professor said the hormone drop-off seems to be nature's way of getting men to behave in a gentle, non-aggressive way around newborn offspring.
Source: BBC News, Nov. 9
Illustration by Tim Rauch