But it's an amazingly safe bet that the main factor is the part where we treat people poorly and openly classify them as a bad person. This seems pretty simple.
Until the had too much of an effect on my health I medicated myself into a morning person sleep schedule. I felt worse physically, just low key bad all the time, but I miss it so much. Getting treated that much better, with absolute benefit of the doubt given to me regarding everything I did, instead of the complete opposite, was really great.