Why? What you copy-pasted makes no claim of causation (e.g., it does not say anything like "if you sleep 6.5 to 7.5 hours a night, you will be happier"); you ju

Why? What you copy-pasted makes no claim of causation (e.g., it does not say anything like "if you sleep 6.5 to 7.5 hours a night, you will be happier"); you just chose to read it that way.