Why do we get scared after watching something paranormal or horror?

I wouldnt say thats generally the case. A person that has never challenged those fears might be impacted by the viewing of a horror movie for instance. My best friend and his girlfriend never watch horror related stuff ‚because it scares them‘. Which is fine and dandy. But I find it also rather difficult to one day have kids, without being able to differentiate between fiction and reality. Or even without wanting to gain that ability. Because, yeah, it would involve facing fears etc., leaving comfort zones etc. Bullshit.

Cuz we're scaredycats

We may be dealing with unresolved issues we wish not to directly deal with through the entertainment we watch knowing deep down that it is safe, and what actually scares us is what we're avoiding day in and day out.

Don't know... I was watching aliens the other night, and my dog sniffed loudly at the door the way he does, right before a scary bit. Nearly sent me through the f#cking roof! 😅

I have never gotten scared, so I don't know how to answer this

Because we opened a portal

It’s the idea of something that can’t be explained by normal occurrences, which can be unsettling in general.