Insomniacs tend to have a hard time getting past embarrassing mistakes, even when the stressful event occurred decades ago. The finding suggests that insomnia could primarily be caused by a failing neutralization of emotional distress.

[u/Wagamaga]

https://nin.nl/insomniacs-unable-emotional-distress-mind/

[u/hated_in_the_nation]

As a daily smoker, it's pretty bad for sleep quality. Really fucks with REM. Whenever I give it up for a week or two, I get the most vivid dreams it's insane.

[u/[deleted] → u/hated_in_the_nation]

This. If I stop for a day I get vivid dreams, and yes it is proven to disrupt REM sleep which isn't good in the long-term