Most people do not think of
coffee as a drug.
But, in fact, it is a drug
and it has an important effects
on your body.
Some of the effects are good
and some are not.
Coffee can help you stay awake
when you are driving or working.
But it can also keep you awake
at night when you want to sleep.
Coffee makes some people
feel more alive so they can work
better.
Other people feel too nervous
when they drink coffee.
After a large meal,
coffee can help your stomach.
But too much coffee
can cause a stomachache.
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