At interviews or exams, despite having done all of your preparation and knowing your stuff, do you get so overwhelmed by nerves that your mind goes blank and you're totally unable to think straight or answer confidently?
When we eat, our natural survival brain releases feel good neurotransmitters (dopamine) into our body to reward us. This is to keep us reminded of where food can be found in case it should become scarce.
As you know, sleep is such a delicate process that many things can disturb it. Yet it's something we're born able to do from the outset, it's innate, so why does getting enough sleep get so complicated?