I was fully prepared to be tramautized when I went in the theater. I heard from other people that you wouldn't be able to sleep at night after watching it but I went in anyways. And my reaction:



Very good movie. It had me really f*cking scared while watching it, but it doesn't have a lasting effect on me at all. When I went home I wasn't scared. Actually when I went home I pretended to my mom for a few minutes that "Omg I'm so scared I'm gonna cry" but then I bursted out laughing and saying I was fine.
The thing about the movie that was amazing was that it keeps you on the edge of your seat and make your heart race. But mostly because the whole thing seemed SUPER REAL (well, except for the fact that the guy was way too brave). Also there wasn't any crazy special effects so it doesn't seem ridiculous. Actually the movie had quite a bit of funny lines so it had me laughing at times. All the scaryness came from the suspense like WAHHH WHAT'S GOING TO HAPPEN NEXT? HOLY CRAP.
Also I couldn't eat my popcorn while watching it because I was afraid when I'd swallow something scary would happen and I'd end up choking on it.

So if you're planning to see it, you'll be glad you did, but you won't be all that tramautized. At least in my opinion. But I regret that I closed my eyes for a split second at the end X_X Then it would've been way more scary for me.