I have to admit the best way to get back energy after working for a long time is to give ourselves a pause, and get away from work.
Now, I am sitting in the quiet office, one hour before everyone comes. I will list this as one key happiness items – it allows you to concentrate, and wandering in the office to see where you can improve this important place.
I am back, and I am fully refreshed. Thanks for the long Yangshuo, Guilin trip. It seems I should arrange more? Work + Pause is actually more productive than continuous work.