In my observation it seems to be same with human energy. When I was starting out at other company, I had no idea how to balance my work and life. I only focused on achieving my tasks within the deadline and always being at my desk. I did nothing but work until everything was complete. As a result I was always exhausted and always felt like “my battery” was running low. Often I didn't have enough energy to do all things that need to be done in life outside the office - simple things like shopping and paying bills, exercising, cleaning, educating myself about something new or even socializing.
The reason is that in Korea flexibility in the work place is unusual. There is a great deal of pressure to focus on tasks and deadlines and there is not a lot of focus on a balance between work and outside life. Because hierarchy is important in our office culture people sometimes feel uncomfortable leaving before the boss leaves. This makes it difficult to plan extra-curricular activities for after work hours.
In Korea most banks are open only from 9am-4pm. That means that working people don’t have time to get the odds and ends of life completed before 4pm without using a day off from work. So often people will take a day off from working just to get normal things accomplished. But it’s different at PUMA Korea.