Peer preference, compared to friendship quantity, appears to have a more consistently protective role in the relation between externalizing behavior and bully status as well as victim status. (link.springer.com)
Other studies suggested a possible protective role for magnesium. (sciencenews.org)
Sexual communication with parents, particularly mothers, plays a small protective role in safer sex behavior among adolescents; this protective effect is more pronounced for girls than boys. (jamanetwork.com)