Norepinephrine (Noradrenaline) helps us get things done, allows our mood to reflect the world in front of us, and identifies priorities. If your Norepinephrine is too high, it can cause paranoid thinking, aggression, mis-prioritisation (the wrong things seems important) and mis-hyperfocus (where you do one thing to the exclusion of all other things – but it is the wrong thing). If your Norepinephrine is too low, it can cause negative self talk, anxiety, angry thinking and interferes with task initiation and completion. Your body responds to low Norepinephrine by giving you social anxiety, fast anger response and tries to push you into Critical Mode.