How do you remember facts you have read? Do you remember facts from reading or listening? Vision is the fastest input into the brain compared to other senses. I

How do you remember facts you have read? Do you remember facts from reading or listening? Vision is the fastest input into the brain compared to other senses. I generally remember facts by remembering the image, for example some books I've read, I can tell you what page number, what side of the book and where on the page the information is but I can also tell you where I was standing when I read the book and sometimes the smells. Is that a clue as to how we remember? Websites are harder. Some information is irrelevant so I don't remember it, this could also be why some people don't learn at school if a kid has secret plans about their futures even from primary school age. Thing is people remember all sorts of things that are pertinent to them, life changing events and when detailed questioning is applied they can tell you everything about the situation even smells. So what I wonder is this, do certain hormones have an effect on recall considering the fight or flight phenomena? The Police also know witness statements can be unreliable because people switch off on repetition like driving to work, it becomes an almost unconscious task, so does this also back up the possibility that stressful environments can heighten learning? Do Neurologists sample hormones when putting people into a MRI scanner? Not in my limited experience.