The document discusses how social media is harming the mental health of teenagers in three main ways: 1) A study found that teenagers who use social media at night have worse sleep and increased anxiety and depression due to feeling pressure to be available constantly. 2) Teenagers need more sleep than adults but are getting less due to social media, homework pressures, and other factors, negatively impacting their health. 3) Social media disproportionately increases pressures on teenage girls to look perfect and meet unrealistic standards, fueling self-loathing and bullying when they do not. The author argues the government needs to act given multiple studies showing the risks to teenagers' mental health.