Plus, the wounds of couples who had lower levels of hostile behaviors in their interactions (no matter which discussion) healed 40 % faster than those that did have hostility. (scienceofrelationships.com)
Compared with the low - hostile behavior group, high - hostile participants had fewer positive behaviors, lower marital satisfaction, and reported more negative affect after interacting with their spouse. (jamanetwork.com)
In the past, such hostile behavior has been attributed to high testosterone levels, although a direct link between that hormone and infant - specific aggression had not been found. (scientificamerican.com)