In which way can social networks negatively impact health?

Social networks can negatively impact health primarily by promoting harmful behaviors or misinformation. This occurs when individuals receive inaccurate or misleading health information through their social connections, which can lead them to make poor health decisions. For instance, false claims about medical treatments, vaccines, or lifestyle choices can spread rapidly within a network, influencing people's beliefs and actions in ways that put their health at risk. Misinformation can also stifle trust in legitimate health sources and create confusion around important health issues.

In contrast, the other options illustrate contexts where social networks can be beneficial rather than harmful. Providing accurate health information enhances knowledge, overwhelming individuals with too many resources typically does not directly harm health, and increasing access to care is generally a positive outcome associated with supportive social connections. Therefore, the propagation of harmful behaviors and misinformation stands out as a critical way social networks can negatively affect health.