If you've been studying or otherwise engaging in mental work, there are certain activities which are often recommended to "refresh your mind" when you are tired. Here are some common examples:
- Taking a walk outside, generally enjoying nature
- Listening to music
- Doing something creative like drawing, dancing, or singing
- Unplugging from social media
What does "refreshing" technically mean in this context? Why do we sometimes feel like our brains need to be refreshed in the first place? What do the above activities have in common which makes them especially conducive to this refreshing?