Men exert nearly triple the energy that women do during courtship, according to a recent study from Javeriana Pontifical University in Colombia, reported in the latest issue of the Chronicle of Higher Education (subscription required). Using student volunteers armed with heart monitors and journals, undergraduate Lina María Ángel Jaramillo found that men use far more energy than women while eating, dancing, and even watching television in the presence of the opposite sex. Ms. Jaramillo told the Chronicle of Higher Education, “I never imagined that they tried so hard.”
—Bennett Gordon