The latest burst of recriminations directed at social media emphasizes the harm that can be done to teenagers. Frances Haugen, a former Facebook Inc. product manager turned whistle-blower, says executives at Facebook are aware of research showing the company’s Instagram photo-sharing platform in particular can be detrimental to teenage girls More

On Tuesday, Facebook whistleblower Frances Haugen testified before a Senate panel. The hearing’s focus was advertised as “protecting kids online.” … Researchers have worked for decades to tease out the relationship between teen media use and mental health. Although there is debate, they tend to agree that the evidence we’ve seen More