t******e defence mechanism.?

Question

I have a deathly fear of heights. I notice that I can feel my groin area contract when I look over my friends balcony. Isn't that weird? I can literally feel my balls go into protective mode. Just wondering if anyone has ever felt this. Does anyone know the scientific term for this? I would like to study

Answer 1

Yea ,It's called suckin wind

Answer 2

Crenasteric reflex (?)

Answer 3

it's a reflex, one of the way your body responds to danger or fear. Since back in the olden days, main source of danger where fights with other animals, drawing the balls in is indeed a protective mechanism.