What's the Rush?

Digestion in the old and young

Always starts with teeth and tongue.

In pride a sandwich you create

And then proceed to masticate.

Cued by taste, the brain demands

Help from the saliva glands.

Then without great muss or fuss

It slides down the esophagus.

(Beware if you're the greedy type;

Don't let it stray down your wind pipe!)

Then the stomach, juices sloshing,

 breaks down what you have been noshing.

Bile and stomach acid mix,

Breaking up those fatty cliques

That would never separate

If enzymes didn't set 'em straight.

Next we have the peristalsis,

Moving chyme like ballroom valses.

Intestines suck up what they want,

And the rest of that croissant

That you ate so recently

Is reduced by chemistry

To a momentary flush.

So, when dining – what's the rush?

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