It has constantly puzzled my why people are sleep deprived. why?
There are studies somewhere that if you ship people out to camp in remote areas with only fire as a light source, their circadian rhythms almost always realign within a few nights.
Furthermore, the genetics that determine how light-sensitive one's circadian rhythms were never selected against because it really didn't affect survivability except at the very far ends. Event then, Delayed Sleep Phase Syndrome might have been allowed to remain around because it produced night-watchers that contributed to the survival of the pack. The result is there is a very large spectrum of light-sensitivity fairly well distributed amongst the human population.
All this adds up to: Very few people are not light sensitive, and a majority of it display varying degrees. So much so, difficulty maintaining a natural sleep pattern is considered the norm and not many people question it anymore.
My wife is guilty of the Netflix and News descriptors mentioned above. I avoid the news and prefer to read but I still get stuck in the "one more chapter" hole.
I am curious to know the breakdown of sleeping habits based on some simple personality distinguishers like introvert vs extrovert.
Age, anxiety, work-load, sleeping conditions, habits, physical health - to name the more obvious reasons.
Is that really such a puzzle?
I'm pretty sure it partially has to do with my environment (living in NY, which is loud and full of light, even at night).
But also some people are simply lighter sleepers than others. No one in my family is ever able to stay asleep longer than 5am, and all of us are very light sleepers.
My boyfriend is able to fall asleep and stay asleep WITHOUT being blackout drunk. I am amazed by this.
Noise is a little tougher. Luckily, my place is pretty well insulated. But white noise like fans and such and earplugs can help a lot.
I don't understand people who constantly deprive themselves of sleep, willingly.
I doubt that. You must be at least partially aware that people often have long commutes and/or expectations of long work weeks.
Puzzle solved.