In the acute stress phase), where we run on fairly high levels of stress hormones and are therefore able to overhear pain, fatigue and other discomfort (high levels of stress hormone "numb" the system) - to get the task done. Because you have so much excessive energy – cortisol in high amounts acts as the big debit card that mobilizes not only what you have in the account, but also your entire pension savings (muscles and bones) – you can become completely addicted to feeling "high" and have as much "cash" available.
You want to experience it again and again. So you continue at the same high speed. The problem is just that it is borrowed energy. It must be paid back, with interest. So this state can NOT persist.
It is not only metaphorical that people talk about speed blindness. Changes occur in our sensory apparatur, which affects our connection between brain and body.
Parts of the senses switch off, so you literally get tunnel vision (peripheral vision, for example, the brain does not use energy because it has to focus on the target/threat in front of you)
Something also happens with the balance, stability and fine motor skills, which is expressed by the fact that you… …becomes clumsier and drop things …bump into things ...has difficulty hitting precisely, e.g. the right keys on the keyboard ...don't have the patience for pill work
Some of the adaptations also mean that you are… …more likely to run into injuries and bump or trip