As somebody with a pretty severely delayed circadian rhythm, I believe from my experience that you actually just have a normal cycle. With the abundance of ele

As somebody with a pretty severely delayed circadian rhythm, I believe from my experience that you actually just have a normal cycle. With the abundance of electric lighting etc., everyone can be a bit lazy and go a couple of hours later than their normal cycle. But, if you actually were a night-owl, you’d be basically unable to force yourself to sleep at 10pm - at least, not until you become sleep-deprived enough (and not even then sometimes). This is one of the biggest problems people with actually delayed circadian rhythms have - people with normal rhythms (innocently, but incorrectly) believing that their experience means that it’s just a preference and routine/discipline issue for everyone.