Stop falling for misleading headlines. Understand the difference between correlation and causation, and learn how researchers prove real scientific facts.

News headlines often compress complex science into a simple storyline: If two things are happening at the same time, one must be causing the other. Tylenol causes autism. Ultra-processed foods cause ...

A comment posted by a reader on a recent post reprimanded me for suggesting that marijuana caused relationships to go bad. In this instance the reader was mistaken, as I had specifically used the word ...

This transcript has been edited for clarity. Robert A. Harrington, MD: Hi. This is Bob Harrington from Weill Cornell Medicine on Medscape Cardiology | theheart.org. Over the years, we've talked often ...