Why is driving more tiring than working?

[LePaige]

Driving, especially long-distance driving, can easily lead to fatigue, mainly due to excessive energy consumption. Driving is equivalent to moderate physical labor. Energy consumption in the brain: The human brain is similar to a CPU, accounting for only 2% of body weight but consuming 20% of the body's daily energy. While driving, attention needs to be continuously focused, and real-time reactions are required. Research by some institutions has found that after three hours of long-distance driving, the brain's energy consumption increases by more than 40% compared to normal. Clearly, the brain is not an energy-saving device. The posture of driving also comes at a cost: Driving requires maintaining a fixed posture with the neck slightly forward, the back and waist needing support, the hands raised, and the toes slightly lifted. These actions require continuous muscle contraction, meaning the driving posture continuously consumes energy.