What is the writer's main point about the "loneliness epidemic"? — The headlines are confident, but the evidence is far less clear-cut than they suggest
According to the text, why is loneliness difficult to measure? — Because it is a subjective feeling that shifts with how a question is worded
What does the text say about the link between social media and loneliness? — Lonely people may go online because they are lonely, so cause and effect are unclear
