Cellphone interface designers use the latest psychology research to trick you into getting little dopamine kicks every time you do something.
Colours, tiny beeps, rewards, notifications. Everything is meticulously tailored to keep you on the screen longer. The research is so extensive they track everything to tailor it better, your movements,times of day, social circles. Algorithms and researched chew up all that in a effort to get more eyes, more attention. I would urge anyone who lives in the 21 century to at least understand that, and think about what they are doing not just going on autopilot.