This is the moment when reading about some 28-year-old who's suddenly worth $300 million can have an effect that requires medical attention.
You will probably have a heart attack when you read about a 28 year old that is suddenly with $300 million. 
mnli hypothesis: You will probably have a heart attack when you read about a 28 year old that is suddenly with $300 million.  premise: This is the moment when reading about some 28-year-old who's suddenly worth $300 million can have an effect that requires medical attention.