Confirmed: Women who breast-feed are more aggressive

Like mama bears ferociously protecting their young, new research suggests human moms, at least those who are breast-feeding, can act more aggressively than others.

In a controlled lab setting, breast-feeding moms were indeed more aggressive toward people who were rude to them.

“Breast-feeding mothers aren’t going to go out and get into bar fights, but if someone is threatening them or their infant, our research suggests they may be more likely to defend themselves in an aggressive manner,” study researcher Jennifer Hahn-Holbrook, of the University of California in Los Angeles, said in a statement.