It would be cool to have a setting that users can turn on, which after a certain number of consecutive games or certain amount of time playing, it shows a screen that reminds you to take a break. It might help addicts such as myself who decide to play a few bullet or blitz games, and then get carried away in an unhealthy way
https://lichess.org/forum/lichess-feedback/feature-request-take-a-break-reminder