Blood circulation worsens and our body stiffens when we keep the same posture. Besides, it is easy to feel tired when blood circulates badly. Fatigue substances can be removed and fresh blood can be transferred to tired spots by improving blood circulation. In other words, instead of taking a break, we should "move our body actively" especially the parts where we feel tired. Blood circulation removes tiredness.

When moving heavy components and items in factories, the fingers and shoulders are stressed, and since the head-down position is kept for a long time, the back and body are stressed. These help to reduce fatigue in those stressed areas and refresh the poor blood circulation that results from sitting for long time, and gain "a body that doesn't tire out so fast".