a reaon never to ride again

Just heard on TV. Riding on roller coasters can be bad for your heart.  My last roller coaster ride was at Dolly Wood when my 40-something children were in their teens. I swore then never to ride a roller coaster again.  I thought my decision was merely based on sheer terror.  Now I realize that I made a good health decision.  Not that I have any heart problems but who knows what might have happened.