As it turns out, sleep may make us more civil.
There’s an interesting paper: “Sleep loss leads to the withdrawal of human helping across individuals, groups, and large-scale societies.”
The researchers note that acute stress, including cortisol release, may play a role in reducing prosocial behavior while increasing egoistic choices in moral dilemmas.
“The implications of this effect may be non-trivial when considering the essentiality of human helping in the maintenance of cooperative, civil society … “
More at:
https://journals.plos.org/plosbiology/article?id=10.1371/journal.pbio.3001733
https://reasons.org/explore/blogs/todays-new-reason-to-believe/sleep-loss-leads-to-altruism-decline
Civil Twilight 