In this age of online everything, many runners track their training digitally by syncing their watches to the cloud. But thanks in part to Instagram and Pinterest, an analog alternative is trending.

Bullet journaling has been ... skip on things like self-care, sleep, or relaxation, jot down reminders throughout your journal. There are even printable pages you can paste into your journal.

If you've never heard of a bullet journal, let me fill you in. The idea: You have one notebook that works as a to-do list, diary ... and landed on sleep, exercise habits, whether I ate out ...