Continuously viewing related content on social media because the platform's algorithm keeps feeding posts that are increasingly more extreme than the previous. Although rabbit holing can deal with happy subjects, it often implies negative opinions and emotional bias.
Psychologists claim people pay more attention to negative events than they do positive ones due to evolution. For thousands of years, people had to be aware of danger to survive, resulting in our brains prioritizing bad over good. See
doomsurfing.