Answer:
When you think about something repeatedly, it becomes habitual. An example is, let’s say, you always check if your doors are locked before you leave subconsciously. That’s habitual thinking.
Aerobes can't survive without oxygen
With spinal cord injury if you injure the cervical or thoracic areas, it will affect breathing, could cause you to breath with intercostal muscles because diaphragm doesn't function or cause paralysis.
traumatic brain injury can leave injuries to multiple areas. could cause shock, death, heart issues, and so on.
A phrase to describe a negative feedback loop could be: self-regulating (though I'm not sure the exact word you're looking for).
