tl;dr psa for everyone: configure your phone for grayscale, least animation, vibrate-only and turn off most notifications.

Smartphones are mental cocaine. Look around a city almost anywhere and most people are hunched over, staring at glowing glass and oblivious to almost everything... so much so the Dutch are putting crosswalk lights on the ground to keep people from walking into traffic while they’re getting their fix. It’s clearly unhealthy as focus, socialization and personal safety suffer.