All the blood rushes to your head & the pressure feels like your eyes might pop out + it sprains your ankles, causes lifelong lumbago. Hence the waiver.
I would have thought they would have chosen a more picturesque surrounding considering it may possibly be the last thing you ever see before your imminent death!
I did my first bungee jump in Thailand and I can honestly say that I was like this guy counted to 3 and stood still its nothing to do with looking down it’s the walking/ jumping into the air with nothing around the body to make you feel secure!