What should you do when you take a break at work?

There are a lot of statistics about the fact that taking breaks actually increases your overall productivity. So breaks are supposed to be restorative.

And the "Learning How to Learn" course material emphasizes the importance of switching between focused mode and diffuse mode. (with "diffuse mode" representing breaks)

But what exactly should you be spending your time on during a break, in order to maximize productivity? (though exclusively focusing on productivity isn't so good; hopefully we can improve overall well-being too)

Things I like to do

• take a short walk, let your mind wander aimlessly (there's scientific evidence that walking significantly improves creative thinking)
  • walk around the block, if you can
• doodle, or use adult coloring books
• (possibly mindfulness / cognitive defusion, but I've found that hard to do in practice, if I'm already stressed out)

Things I've seen suggested

ABSOLUTELY AVOID SCREENS. Shut the laptop and stay off the phone.

You can Google a few things:

• ways to relax
• ways to destress at work