I don't even tell my body what to do.

And while I'm gone, something else is telling my body what to do.

During the day, light tells your body to make less melatonin.

Then I told my reluctant body that it was time to loosen up.

The darkness that comes with night tells our body to slow down for the day and get some rest.

This will tell your body that you need more milk.

"I do not have time for this," he told his body firmly.

Light is a cue to be awake, while dark tells your body to sleep.

He began to sweat, and told his body to stop sweating.

Or that's what he told his body to do.