eli5: Why do we get tired while travelling? Even though all we do is sit.
In: Other
Your body is actually doing a fair amount of work in a vehicle like a car, even when you’re “resting”, to compensate for the movement you’re experiencing and, especially, any subtle changes in it. Add to that that often you are also exerting the brain, especially on longer trips, and it can add up to a decent expenditure of energy that can make you pretty tired, especially if you are adding some amount of monotony fatigue to it.
You are constantly adjusting your posture in order to compensate for the acceleration you are putting yourself under. And that requires a pretty good amount of core body strength.
Additionally, focusing on something is itself exhausting. And driving requires a good bit of focus in order to do it fairly safely.
What about non-car related travel?
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