Death Trains and Heart Attacks

A guy and I have developed a bit of a hobby lately—testing our limits with things that are genuinely terrifying. Right now, we're obsessed with extreme roller coasters. Honestly, once we start making some real money, I wouldn't be surprised if we move on to even more dangerous thrills...

Anyway, I wanted to ask: is it actually possible to have a heart attack from the sheer adrenaline rush on these rides? You always see those warnings posted everywhere saying they aren't for people with heart conditions...
The other day, this guy saw a video on TV of one insane coaster. It climbs incredibly high, flips you upside down so you're staring straight at the ground, and then drops you in a rapid spiral like you're just freefalling. Reading about it makes it sound manageable, but the reality is always way more intense than I can imagine. Is there a legitimate risk of someone suffering a heart attack simply because they're terrified of dying? (I've read accounts where people pass away before any physical injury occurs, purely because the shock or the fear of death is too much...)

To be clear, my heart is perfectly fine. But... I think I might be more terrified of this than everyone else combined. Even after the ride is over, I'm not laughing. Instead, I’m left in total shock for the rest of the day. My chest aches, and I can't sleep because every time I close my eyes, I get the sensation that the coaster is about to launch again...

Should I even keep doing this, or would it be smarter to find a different way to spend my time? 😁

I mean, sure, you hear stories about people having heart attacks because of a roller coaster, but honestly? That’s incredibly rare. If your heart is healthy, there’s really nothing to be afraid of. On the most intense coasters out there, the G-forces don't even top 6 Gs downward or -1 G upward, and those 6 G moments are the absolute limit. Most of the time, you're just looking at an average of about 3.5 Gs pulling you toward the ground.