Why do we jump when we get scared?
It is your fight of flight response, your body jumps to make ready and your brain tunnels on the threat. it is a byproduct of the evolution of our species.When we startle we come to attention, assess the treat and either fight or run.
It's a nerve reaction.
Maybe its like a nerve and our brain just makes it jerk so that make us jump when we get scares All ways wondered that my self ;)
Its a reflex. Same reason why your foot is supposed to kick or lift up when the doctor hits you in a certain spot in the knee
Any of the above are good answers but maybe thinking about something else so we would be caught off guard. I wonder if it can be relayed to anxiety.
It's your reflexes
Cuz your afraid of getting hit with something
It's part of the "fight or flight" response our nervous system responds to from the sudden surge of adrenalin.
It's a nerve reflex