The difference between mental work and manual work

1. Definition: Mental work mainly refers to the thinking, analysis, judgment and decision-making of workers with the brain nervous system as the main sense of movement. Manual labor mainly refers to the labor in which the laborer takes the motor system as the main motor organ, such as carrying, building and driving.

2. Energy required: Physical labor mainly depends on the movement of muscles, bones and other moving organs, which requires a lot of heat and energy, so it needs to consume a lot of food to supplement energy. Mental work mainly depends on the excitement and inhibition of brain nerve cells, which requires relatively little energy, so the demand for food is relatively low.

3. Fatigue performance: The fatigue of manual labor is mainly manifested as muscle soreness and fatigue. Need rest and sleep to restore physical strength and mental state. Mental fatigue is mainly manifested in brain fatigue, mental tension and so on. Need rest, relaxation and adjustment to restore physical and mental state.