It's the motion.

It's the motion.

The motion. The back and forth.

You asked earlier what made you so tired when you traveled.

It's the motion.

I'm serious. That the train makes, that a plane makes, that a car makes, that a boat makes.

Suppose a boat's a bit different.

The back and forth.

Think of a toddler.

Think of a young, young child doesn't have its balance yet,

and how it'll just flop over,

just fall right over, even with everything being perfectly ideal for walking.

Now a little bit older, a child wouldn't have any issue, but put them on a train or a boat,

and they won't adjust as well.

Back and forth that we just deal with, that we learn to deal with at some point, and take some energy.

So, even though we're sitting down on this train, the rails, turns, the accelerations,

decelerations, they make our body sway back and form.

And we try and stay perfectly upright and still, like good adults.

So we're constantly adjusting and re- readjusting. These little micro adjustments,

well, not only do they add up. Not only do they make quite the workout overall, but

their muscles were not used to using.

It's not in your head.

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