Twenty minutes with a paper book is a cheap vacation from your feed.

A feed is built to keep you moving, and a book makes you stay in one place for as long as you choose. Twenty minutes in one is a different kind of rest from twenty minutes of scrolling, because nothing is trying to hand you the next thing. You usually come out of it slower in a good way. It costs nothing you do not already have.

Keep a paper book where your phone usually sits at night. Read for twenty minutes before bed, one chapter or less, no target. If it is a book you actually like, this is not discipline.