This refers to the idea that sports encourages athletes to be act rough against opponents.
Messner emphasizes that the majority of male athletes do not participate in violence against women.
psychic armor: which argues that violence is men's way of achieving emotional distance.
psychic pressure cooker: masculinity has been directly tied to bottling up of emotions.
i.e. growing up in a violent household will teach a young boy that violence is an accepted part of life.