Peers can influence health behaviors through social norms, social support, and social comparison, but not through genetic inheritance.

Peer socialization is the process by which individuals adopt the health behaviors of their peers.

Age, gender, and race/ethnicity can all contribute to peer influence on health behaviors, but socioeconomic status is not a factor.

Homophily is the process by which individuals select friends and peers who are similar to themselves in terms of health behaviors.

Peers can promote healthy behaviors by providing social support, modeling healthy behaviors, and creating a sense of belonging, but they cannot encourage unhealthy behaviors.

Social conformity is the process by which individuals change their health behaviors in order to conform to the norms of their peer group.

Peers can negatively influence health behaviors by encouraging unhealthy behaviors, providing social support for unhealthy behaviors, and creating a sense of isolation, but they cannot model healthy behaviors.

Social learning is the process by which individuals learn health behaviors from their peers.

Peers can provide social support for healthy behaviors by providing information and resources, offering emotional support, and providing instrumental support, but they cannot encourage unhealthy behaviors.

Social comparison is the process by which individuals compare their health behaviors to those of their peers.

Social comparison can motivate individuals to improve their health behaviors, discourage individuals from improving their health behaviors, and create a sense of dissatisfaction with one's health behaviors, but it cannot create a sense of satisfaction with one's health behaviors.

Social conformity is the process by which individuals change their health behaviors in order to avoid being different from their peers.

Peers can create a sense of belonging by providing social support, modeling healthy behaviors, and creating a sense of community, but they cannot encourage unhealthy behaviors.

Heterophily is the process by which individuals select friends and peers who are different from themselves in terms of health behaviors.

Peers can influence health outcomes through social norms, social support, and social comparison, but not through genetic inheritance.